End-tab vs. top-tab — what’s the difference?

End-tab folders show the tab on the long side and are used on open-shelf systems; top-tab folders show the tab along the top edge and are designed for drawer filing.

When should I choose classification folders?

Choose classification folders when you need built-in dividers and 2-prong fasteners to separate sections within one file—ideal for medical charts, legal matters, and case files.

Letter or legal size — how do I pick?

Letter (8.5\" × 11\") fits standard documents; legal (8.5\" × 14\") fits longer forms. Match the folder to both your documents and storage equipment.

What tab and material options are available?

Tabs include full-cut, 1/2-cut, or 1/3-cut (assorted positions). Materials range from 11-pt to 18-pt manila, with optional reinforced (2-ply) tabs for added durability.

Can I add fasteners, pockets, or expansion?

Yes—add 2\" bonded fasteners (various positions), pockets/jackets, and expansion gussets (e.g., 3/4\" to 2\"+). Check each product’s options for capacity and placement.

Do you offer volume pricing or custom printing?

We offer bulk price breaks and custom printing (logos, lines, colors). Call (800) 810-3453 for a quote.

What safety labels should I look for on school and early-childhood items?

For children’s products, look for CPSIA compliance and a Children’s Product Certificate (CPC). Art materials should be labeled to ASTM D-4236; many also carry ACMI’s “AP” (non-toxic) or “CL” seals. These help confirm proper cautionary labeling and third-party testing where required.

How do I pick classroom furniture across grade levels?

Favor adjustable-height desks/tables and seating tested to ANSI/BIFMA X6.1 for educational use. Check manufacturer grade/height charts; adjustable ranges let you cover multiple grades with one model and simplify purchasing and spares.

What’s the best way to organize supplies and centers?

Use latching, stackable bins (clear for quick ID; colors for zones/subjects). Add label holders on bins and shelves, and keep a posted color key so students can reset the room independently.

How do I choose learning games and manipulatives by age?

Match to the stated age/grade band and learning goals (fine motor, numeracy, literacy). For early childhood, prioritize oversized pieces, wipe-clean surfaces, and non-toxic finishes.

What should I consider in a charging/tech cart?

Count devices and case sizes; verify slot width/height, cable management, ventilation, and locking doors. If devices support fast-charge (e.g., USB-C PD), confirm the cart’s power specs and total charging wattage.

Do you support school POs, bulk pricing, or custom printing?

Yes—volume pricing and custom imprinting (school name, mascot, subject headers) are available. Call (800) 810-3453.

Sheet vs. roll labels — what’s the difference?

Sheet labels (letter-size) run through laser/inkjet printers; roll labels feed through thermal or dedicated label printers.

Permanent or removable adhesive?

Permanent adhesives are best for long-term filing; removable adhesives peel away cleanly from most surfaces for temporary notes or re-use.

Will these labels work in my printer?

Check each item’s spec for “laser,” “inkjet,” or “thermal.” Avoid running inkjet-only sheets through a laser printer.

How do I match the label size to folder tabs or binder spines?

Measure the printable area of your tab or spine and match to the label’s width/height. If unsure, choose a slightly smaller label for clean alignment.

Can I get preprinted sequences or color bars?

Yes—choose preprinted sets (A-Z, 0-9, months) or request custom colors/text to match your filing system.

Do you have templates?

We provide size specifications and many customers use common label templates. If you need help aligning, call (800) 810-3453.

What do 5-, 8-, 10-, or 12-tab sets mean?

That’s the number of tabs per set. More tabs provide finer organization; fewer tabs give larger, easier-to-read tabs.

Paper vs. poly — which should I choose?

Paper (often with Mylar-reinforced tabs) is economical and easy to write on; poly resists tears and moisture for heavy use and frequent handling.

Are the tabs printable?

Some tabs are hand-write only; others are laser/inkjet printable. Check each product for “printable” support and printer compatibility.

Will they fit my binder?

Choose letter (8.5\" × 11\") for most 3-ring binders or legal (8.5\" × 14\") for longer documents. Many options are pre-punched for standard rings.

Can I mix preprinted and blank tabs?

Yes—use a preprinted core set and add blank or custom tabs for sections unique to your workflow.

Do you make custom tab sets?

Yes—tab titles, colors, and sheet stock can be customized. Call (800) 810-3453.

Which paper weight and brightness should I choose?

Use 20 lb / 75 gsm, 92-brightness for everyday printing; step up to 24–28 lb and 96+ brightness for presentations and double-sided color. If you print heavy coverage or duplex often, the thicker stock helps reduce show-through. Always confirm your printer’s supported paper weights.

Round-ring vs. D-ring binders — what’s the difference?

D-ring binders hold more paper at the same spine width and keep pages lying flatter, which reduces edge wear. Round-rings are economical for smaller sets. Pick capacity based on sheet count and how often you turn pages.

What does “sheet capacity” mean on staplers and hole punches?

It’s measured using standard 20 lb copy paper. If you use heavier paper, expect a lower effective capacity. For shared spaces, choose high-capacity staplers/punches to avoid jams and downtime.

Will labels, envelopes, and mailers work with my printer?

Check each item’s spec for “laser,” “inkjet,” or “thermal.” Laser-safe adhesives resist heat; some inkjet-only sheets shouldn’t go through laser fusers. Use your printer’s label or heavy-stock setting for best feed and adhesion.

How do I choose mailers and shipping boxes?

Bubble or poly mailers are great for lightweight, non-fragile contents; corrugated boxes protect heavier or delicate items. Match interior dimensions to your contents, add cushioning if needed, and choose stronger board as weight increases.

Do you offer eco-conscious options or bulk pricing?

Many items are available with recycled content or reduced-waste packaging, and we offer volume price breaks. Call (800) 810-3453 for large-order help or product guidance.

What ball sizes should I choose for different ages?

Use age-appropriate sizes for safer, more successful play. Common guidelines include: Basketball—Size 5 (27.5\") youth, Size 6 (28.5\") intermediate, Size 7 (29.5\") official. Soccer—Size 3 up to ~8 years, Size 4 ~8–12, Size 5 ~12+. Volleyball—Regulation balls for teens/adults; lighter training balls for younger players. Always check the product page for the manufacturer’s recommended age range.

Indoor vs. outdoor — which materials hold up best?

Composite or rubber-covered balls and poly cones hold up well outdoors; leather and finer composites are best indoors. For markers, look for UV-stable plastics; for goals, choose powder-coated frames and weather-resistant nets for outdoor use.

How many pinnies, cones, or markers do I need?

For classes and drills, packs of 12 are a good start; 24–36 pieces cover full-class activities and multiple stations. Choose mixed colors for quick team splits and field zones.

Tips for storage and care?

Use ventilated ball bags or carts, wipe down gear after outdoor use, and avoid prolonged heat/sun in storage. Inflate balls to the manufacturer’s recommendations and check pressure periodically to extend lifespan.

Are items latex-free and school-safe?

Many products are offered in latex-free or phthalate-free materials. Look for those callouts on the product page. Children’s items may include compliance statements on labeling; review those details if you’re purchasing for younger ages.

Do you support bulk orders or custom printing (team names)?

Yes—volume pricing and custom imprinting are available on many items. Call (800) 810-3453 for a quote or assistance with large sets.

What is the difference between FireKing vertical and lateral file cabinets?

Vertical file cabinets are deeper and narrower, making them a good fit for offices with limited wall space. Lateral file cabinets are wider and allow side-to-side filing, which can make document access easier and provide more filing width per drawer.

What can I store in a FireKing fireproof file cabinet?

FireKing cabinets are commonly used to store paper files, legal documents, medical records, financial records, contracts, personnel files, and other important business paperwork that needs organized fire-resistant storage.

Are FireKing cabinets only for paper records?

Many FireKing products are primarily designed for paper document protection, but some models may also be used for storing valuables or other office materials. Always review the specific product details and manufacturer recommendations to confirm the intended storage use for each model.

How do I choose between a FireKing safe, file cabinet, or storage cabinet?

Choose a fireproof file cabinet if you need organized drawer-based filing for records. Choose a safe if you need compact secure storage for documents, cash, or valuables. Choose a fireproof storage cabinet if you need shelf storage for binders, boxed records, supplies, or larger office materials.

What sizes are available in FireKing cabinets?

FireKing products are available in several sizes and configurations, including vertical file cabinets, lateral file cabinets, safes, card file cabinets, and storage cabinets. Available sizes, number of drawers, and overall dimensions vary by model.

Are FireKing cabinets used in offices, medical facilities, and government records storage?

Yes. FireKing cabinets are commonly used in offices, healthcare facilities, legal environments, schools, and government agencies where important records need secure, organized, fire-resistant storage.

Can I buy FireKing cabinets in bulk or get help choosing the right model?

Yes. We can help with product selection, bulk orders, and larger project needs. If you need assistance comparing FireKing file cabinets, safes, or storage cabinets, call (800) 810-3453.

Do you offer free shipping?

Yes—free ground shipping on orders of $99+.

What are your shipping rates?

Labels-only orders under $40 ship for $6.95. All other orders ship for a flat $14.95.

Do you offer bulk discounts?

Yes—volume pricing is available on many items. Contact us for a quote or large-order assistance.

Do you accept purchase orders (POs)?

Yes—we accept POs from schools and government agencies. If you need terms or documentation, please reach out.

Where can I read your full Shipping and Return policies?

See our Shipping Policy and Return Policy pages for complete details.

How can I contact you?

Call (800) 810-3453 or use our Contact Us form.

Knockout Kits

Knockout kits and hole punchers help electrical and metalworking professionals create holes in steel and other material for conduit, oil-tight fittings, and related installation work. This category includes self-centering knockout punch kits, cordless and corded electro-hydraulic punchers, and a metal-stud wire protection bushing for routing cable through compatible framing.

Add to Wish List
Greenlee

Triple-Lock Metal Stud Wire Protection Bushing, 1-11/32 in.

Retail:

Our Price:
$39.94

(You Save: )

This wire protection bushing is designed for electricians and installers routing cable through metal studs. It helps cover sharp stud edges to protect wire insulation and support smoother cable...

+ Add to Cart The item has been added

Helpful Buying Guide

Choose a knockout kit or hole puncher for the way you work

Start with the hole type, material thickness, and power source required for the job. The products represented here range from self-centering kits for conduit-size and oil-tight holes to portable electro-hydraulic punchers designed for faster punching in specified material thicknesses.

Visual Guide

Popular examples in this category

Battery-Powered Knockout Punch Driver Tool KitWBB1649740

40V Cordless Electro-Hydraulic Hole PuncherWBB3239897

120V Electro-Hydraulic Hole PuncherWBB3185391

Self-Centering Knockout Punch KitWBB1649796

Use Cases

Punch holes where portable setup matters

Battery-powered and self-contained electro-hydraulic tools support hole punching in shop and jobsite settings. A rotating-head battery-powered driver can help when working from different angles.

How to Choose

Match capacity, power, and positioning controls

Compare cordless 18V or 40V operation with 120V electric operation, then check the stated material-thickness and round-hole capacities. Jog-down controls can help confirm placement before the punch cycle.

Applications

Support conduit, oil-tight, and metalworking tasks

A self-centering kit supports common conduit-size holes and a 1-7/32 inch oil-tight hole size. Electro-hydraulic models are intended for professionals creating holes in metal material.

Additional Information

Consider storage, accessories, and cable protection

Some kits include draw studs and a metal case. One 120V puncher includes a work stand, foot switch, 9/16 inch punch and die toolkit, and carrying case. For cable routed through compatible metal studs, a triple-lock bushing helps cover sharp edges.

18VCordless punch driver power

Lithium-ion power supports cordless knockout punching.

16.9 tonPunching pressure

Specified on 40V and 120V electro-hydraulic models for material up to 3/8 inch thick.

26.9 tonHeavy-duty punching force

Specified on a 120V model for heavier-duty hole punching.

1/2 in.Stated material thickness

The heavy-duty 120V model is designed for material up to this thickness.

Comparison Guide

Compare the represented product types

Use this overview to narrow the selection by operation style and the stated capabilities or features relevant to the task.

Product type	Power or operation	Key represented considerations
Battery-powered knockout punch driver	18V lithium-ion cordless operation	360-degree rotating head, single-trigger control, LED work light, and automatic retraction.
Electro-hydraulic hole puncher	40V cordless or 120V electric operation	Jog-down positioning and automatic return; represented models have 16.9-ton or 26.9-ton punching force.
Self-centering kit and wire protection bushing	Manual kit components or installed stud accessory	Self-centering kit supports conduit-size and oil-tight holes; bushing protects cable at compatible metal-stud edges.

Planning Guide

Plan the right fit before choosing

Plan the punching task

Confirm hole size and material requirements first

The represented electro-hydraulic tools have different stated capacities. Two 16.9-ton models support material up to 3/8 inch thick, while a 26.9-ton 120V model is designed for material up to 1/2 inch thick and round holes up to 15/16 inch. For conduit-size and oil-tight work, consider the self-centering kit and its included punch and die components.

Compare the required hole size with the stated tool or kit capability.
Check the stated material-thickness capacity for electro-hydraulic punching.
Choose conduit-size and oil-tight capability when those hole types are needed.

Select operation and control features

Choose cordless flexibility or 120V electric operation

Cordless options include an 18V lithium-ion punch driver and a 40V electro-hydraulic puncher. The 120V electro-hydraulic options operate from electrical power in self-contained designs, without separate hydraulic equipment or power packs. Jog-down positioning is available on the represented electro-hydraulic punchers to help verify placement before punching.

An 18V rotating-head driver supports punching from different working angles.
The 40V puncher has a stated 2.5-second punch cycle.
120V options offer electrically powered electro-hydraulic operation.

Account for return, handling, and installation details

Look for features that support controlled work

Automatic retraction or return helps bring the punch back after operation. One 120V model also has a power-feed return for added return assistance, while the heavier-duty 120V model has lift-assist attachment points. Where cable passes through compatible metal studs, the listed bushing fits 24- to 12-gauge studs and provides a smooth pulling surface.

Automatic return is featured on the electro-hydraulic punchers.
A metal case helps organize the self-centering kit for storage and transport.
The triple-lock bushing helps protect cable insulation from sharp stud edges.

FAQ

Common questions before buying

What is a self-centering knockout punch kit used for?

It is used to make conduit-size and oil-tight holes. The punch aligns on the pilot hole to reduce layout and die-alignment steps.

What material thickness can the represented electro-hydraulic punchers handle?

The 16.9-ton models support material up to 3/8 inch thick. A 26.9-ton 120V model is designed for material up to 1/2 inch thick.

Why use jog-down positioning?

Jog-down positioning helps users confirm hole placement before initiating the punching cycle.

What does the metal stud wire protection bushing do?

It helps cover sharp metal-stud edges to protect cable insulation and provide a smoother surface for cable pulling through compatible 24- to 12-gauge studs.

Helpful Buying Guide

Choose a knockout kit or hole puncher for the way you work

Visual Guide

Popular examples in this category

Battery-Powered Knockout Punch Driver Tool KitWBB1649740

40V Cordless Electro-Hydraulic Hole PuncherWBB3239897

120V Electro-Hydraulic Hole PuncherWBB3185391

Self-Centering Knockout Punch KitWBB1649796

Use Cases

Punch holes where portable setup matters

Battery-powered and self-contained electro-hydraulic tools support hole punching in shop and jobsite settings. A rotating-head battery-powered driver can help when working from different angles.

How to Choose

Match capacity, power, and positioning controls

Applications

Support conduit, oil-tight, and metalworking tasks

A self-centering kit supports common conduit-size holes and a 1-7/32 inch oil-tight hole size. Electro-hydraulic models are intended for professionals creating holes in metal material.

Additional Information

Consider storage, accessories, and cable protection

18VCordless punch driver power

Lithium-ion power supports cordless knockout punching.

16.9 tonPunching pressure

Specified on 40V and 120V electro-hydraulic models for material up to 3/8 inch thick.

26.9 tonHeavy-duty punching force

Specified on a 120V model for heavier-duty hole punching.

1/2 in.Stated material thickness

The heavy-duty 120V model is designed for material up to this thickness.

Comparison Guide

Compare the represented product types

Use this overview to narrow the selection by operation style and the stated capabilities or features relevant to the task.

Product type	Power or operation	Key represented considerations
Battery-powered knockout punch driver	18V lithium-ion cordless operation	360-degree rotating head, single-trigger control, LED work light, and automatic retraction.
Electro-hydraulic hole puncher	40V cordless or 120V electric operation	Jog-down positioning and automatic return; represented models have 16.9-ton or 26.9-ton punching force.
Self-centering kit and wire protection bushing	Manual kit components or installed stud accessory	Self-centering kit supports conduit-size and oil-tight holes; bushing protects cable at compatible metal-stud edges.

Planning Guide

Plan the right fit before choosing

Plan the punching task

Confirm hole size and material requirements first

Compare the required hole size with the stated tool or kit capability.
Check the stated material-thickness capacity for electro-hydraulic punching.
Choose conduit-size and oil-tight capability when those hole types are needed.

Select operation and control features

Choose cordless flexibility or 120V electric operation

An 18V rotating-head driver supports punching from different working angles.
The 40V puncher has a stated 2.5-second punch cycle.
120V options offer electrically powered electro-hydraulic operation.

Account for return, handling, and installation details

Look for features that support controlled work

Automatic return is featured on the electro-hydraulic punchers.
A metal case helps organize the self-centering kit for storage and transport.
The triple-lock bushing helps protect cable insulation from sharp stud edges.

FAQ

Common questions before buying

What is a self-centering knockout punch kit used for?

It is used to make conduit-size and oil-tight holes. The punch aligns on the pilot hole to reduce layout and die-alignment steps.

What material thickness can the represented electro-hydraulic punchers handle?

The 16.9-ton models support material up to 3/8 inch thick. A 26.9-ton 120V model is designed for material up to 1/2 inch thick.

Why use jog-down positioning?

Jog-down positioning helps users confirm hole placement before initiating the punching cycle.

What does the metal stud wire protection bushing do?

It helps cover sharp metal-stud edges to protect cable insulation and provide a smoother surface for cable pulling through compatible 24- to 12-gauge studs.

Triple-Lock Metal Stud Wire Protection Bushing, 1-11/32 in.

Choose a knockout kit or hole puncher for the way you work

Popular examples in this category

Punch holes where portable setup matters

Match capacity, power, and positioning controls

Support conduit, oil-tight, and metalworking tasks

Consider storage, accessories, and cable protection

Compare the represented product types

Plan the right fit before choosing

Confirm hole size and material requirements first

Choose cordless flexibility or 120V electric operation

Look for features that support controlled work

Common questions before buying

Choose a knockout kit or hole puncher for the way you work

Popular examples in this category

Punch holes where portable setup matters

Match capacity, power, and positioning controls

Support conduit, oil-tight, and metalworking tasks

Consider storage, accessories, and cable protection

Compare the represented product types

Plan the right fit before choosing

Confirm hole size and material requirements first

Choose cordless flexibility or 120V electric operation

Look for features that support controlled work

Common questions before buying

Choosing the right file folders

Folder FAQs

Outfitting classrooms that work all day

Education FAQs

Choosing the right labels

Labels FAQs

Choosing the right tab dividers

Tab Dividers FAQs

Choosing the right office supplies

Office Supplies FAQs

Choosing the right sports & PE equipment

Sports & Athletics FAQs

Choosing the right FireKing fireproof cabinet

FireKing FAQs

Shipping & Policies