Drill Arbors & Chucks

Drill arbors and chucks help machinists and maintenance professionals mount, hold, tighten, and release drill bits in compatible machining and metalworking setups. This category includes keyed and keyless drill chucks, R8-to-JT drill chuck arbors, and chuck keys for common drill chuck adjustment tasks.

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Helpful Buying Guide

Choose Drill Arbors & Chucks for a Compatible Toolholding Setup

Start by identifying the part needed in your drilling setup: a chuck to hold the drill bit, an arbor to connect a spindle to a chuck, or a key to adjust a keyed chuck. Then compare the connection, capacity, pilot, and operating style shown for the product.

Visual Guide

Popular examples in this category

Use Cases

Build or maintain a drilling setup

Use drill chucks to hold compatible drill bits, arbors to connect compatible R8 spindles and JT chucks, and chuck keys to tighten or loosen keyed drill chucks.

How to Choose

Match every connection point

Confirm the spindle and chuck interfaces before choosing an arbor, such as R8-to-JT3, R8-to-JT6, or R8-to-JT33. For chucks and keys, compare chuck capacity, chuck size, and pilot size.

Applications

Support machining and metalworking work

The represented products are suited to drilling operations, including light- to medium-duty drilling, precision drilling, and drill chuck adjustment in machining and maintenance work.

Additional Information

Compare keyed and keyless operation

A key-type chuck uses a chuck key for controlled tightening and loosening. A keyless chuck allows drill bit changes without a separate chuck key, while an integral design combines the taper and chuck.

3/64–3/4 in.Keyed chuck capacity

The represented key-type drill chuck accommodates this range of drill bit shank sizes.

1/2 in.Keyless chuck capacity

The CAT40 integral keyless drill chuck accommodates bits up to this diameter.

3R8-to-JT options

R8-to-JT3, R8-to-JT6, and R8-to-JT33 arbor configurations are represented.

7/16-20Drawbar thread

This drawbar thread specification is shown on the R8 drill chuck arbors.

Comparison Guide

Compare the main product types

Use this overview to identify which component fits the role and connections in your drilling setup.

Product typeWhat it doesKey selection factors
Drill chuckHolds compatible drill bits for drilling operations.Compare capacity, operating style, and mounting connection or taper.
Drill chuck arborConnects a compatible R8 spindle to a compatible JT drill chuck.Match the R8 shank, JT connection, drawbar thread, and applicable depth.
Chuck keyTightens or loosens a compatible keyed drill chuck.Match the chuck size and pilot; compare features such as recessed corners or hardened tool steel.
Planning Guide

Plan the right fit before choosing

Select the component

Choose the part your setup requires

A drill chuck holds compatible drill bits. An arbor provides the interface between a compatible spindle and drill chuck. A chuck key is used to tighten or loosen compatible keyed chucks.

  • Key-type drill chuck: 3/64 in. to 3/4 in. capacity with a 3JT connection.
  • Integral keyless drill chuck: CAT40 taper with 1/2 in. capacity.
  • Drill chuck arbors: R8-to-JT3, R8-to-JT6, and R8-to-JT33 configurations.
  • Chuck keys: options for compatible 1/4 in., 3/8 in., and 1/2 in. chucks.
Confirm fit

Check interfaces, capacities, and pilots

Compatibility depends on the specifications at each connection. Compare the spindle interface and chuck connection for arbors, the mounting connection and bit capacity for chucks, and the chuck size and pilot for keys.

  • R8 arbors shown use 7/16-20 drawbar threads.
  • The keyed chuck shown has a 3JT mounting connection.
  • The CAT40 chuck is designed for CAT40 toolholding setups.
  • Chuck key pilots shown include 15/64 in. and 1/4 in.
Consider operation and construction

Match operation to the work process

Keyed operation allows controlled tightening and loosening with a chuck key. Keyless operation eliminates the need for a separate key when changing bits. Construction details vary across the represented products.

  • The key-type chuck includes a chuck key and hardened wear parts.
  • The integral keyless chuck has titanium nitride-coated jaws.
  • One R8-to-JT6 arbor has an 8-inch overall depth.
  • A 1/2-inch chuck key is made of hardened tool steel, and one key has recessed corners to help distribute torque across the flats.
FAQ

Common questions before buying

What is the difference between a drill chuck and a drill chuck arbor?

A drill chuck holds compatible drill bits. A drill chuck arbor connects a compatible spindle setup to a compatible drill chuck.

Which arbor connections are represented?

The represented arbors connect R8 setups to JT3, JT6, or JT33 drill chucks.

What capacity is shown for the keyed drill chuck?

The key-type light/medium-duty drill chuck has a 3/64 in. to 3/4 in. capacity.

How do I choose a chuck key?

Match the key to the compatible chuck size and pilot. The represented keys include 15/64 in. and 1/4 in. pilots.}]}},

Helpful Buying Guide

Choose Drill Arbors & Chucks for a Compatible Toolholding Setup

Start by identifying the part needed in your drilling setup: a chuck to hold the drill bit, an arbor to connect a spindle to a chuck, or a key to adjust a keyed chuck. Then compare the connection, capacity, pilot, and operating style shown for the product.

Visual Guide

Popular examples in this category

Use Cases

Build or maintain a drilling setup

Use drill chucks to hold compatible drill bits, arbors to connect compatible R8 spindles and JT chucks, and chuck keys to tighten or loosen keyed drill chucks.

How to Choose

Match every connection point

Confirm the spindle and chuck interfaces before choosing an arbor, such as R8-to-JT3, R8-to-JT6, or R8-to-JT33. For chucks and keys, compare chuck capacity, chuck size, and pilot size.

Applications

Support machining and metalworking work

The represented products are suited to drilling operations, including light- to medium-duty drilling, precision drilling, and drill chuck adjustment in machining and maintenance work.

Additional Information

Compare keyed and keyless operation

A key-type chuck uses a chuck key for controlled tightening and loosening. A keyless chuck allows drill bit changes without a separate chuck key, while an integral design combines the taper and chuck.

3/64–3/4 in.Keyed chuck capacity

The represented key-type drill chuck accommodates this range of drill bit shank sizes.

1/2 in.Keyless chuck capacity

The CAT40 integral keyless drill chuck accommodates bits up to this diameter.

3R8-to-JT options

R8-to-JT3, R8-to-JT6, and R8-to-JT33 arbor configurations are represented.

7/16-20Drawbar thread

This drawbar thread specification is shown on the R8 drill chuck arbors.

Comparison Guide

Compare the main product types

Use this overview to identify which component fits the role and connections in your drilling setup.

Product typeWhat it doesKey selection factors
Drill chuckHolds compatible drill bits for drilling operations.Compare capacity, operating style, and mounting connection or taper.
Drill chuck arborConnects a compatible R8 spindle to a compatible JT drill chuck.Match the R8 shank, JT connection, drawbar thread, and applicable depth.
Chuck keyTightens or loosens a compatible keyed drill chuck.Match the chuck size and pilot; compare features such as recessed corners or hardened tool steel.
Planning Guide

Plan the right fit before choosing

Select the component

Choose the part your setup requires

A drill chuck holds compatible drill bits. An arbor provides the interface between a compatible spindle and drill chuck. A chuck key is used to tighten or loosen compatible keyed chucks.

  • Key-type drill chuck: 3/64 in. to 3/4 in. capacity with a 3JT connection.
  • Integral keyless drill chuck: CAT40 taper with 1/2 in. capacity.
  • Drill chuck arbors: R8-to-JT3, R8-to-JT6, and R8-to-JT33 configurations.
  • Chuck keys: options for compatible 1/4 in., 3/8 in., and 1/2 in. chucks.
Confirm fit

Check interfaces, capacities, and pilots

Compatibility depends on the specifications at each connection. Compare the spindle interface and chuck connection for arbors, the mounting connection and bit capacity for chucks, and the chuck size and pilot for keys.

  • R8 arbors shown use 7/16-20 drawbar threads.
  • The keyed chuck shown has a 3JT mounting connection.
  • The CAT40 chuck is designed for CAT40 toolholding setups.
  • Chuck key pilots shown include 15/64 in. and 1/4 in.
Consider operation and construction

Match operation to the work process

Keyed operation allows controlled tightening and loosening with a chuck key. Keyless operation eliminates the need for a separate key when changing bits. Construction details vary across the represented products.

  • The key-type chuck includes a chuck key and hardened wear parts.
  • The integral keyless chuck has titanium nitride-coated jaws.
  • One R8-to-JT6 arbor has an 8-inch overall depth.
  • A 1/2-inch chuck key is made of hardened tool steel, and one key has recessed corners to help distribute torque across the flats.
FAQ

Common questions before buying

What is the difference between a drill chuck and a drill chuck arbor?

A drill chuck holds compatible drill bits. A drill chuck arbor connects a compatible spindle setup to a compatible drill chuck.

Which arbor connections are represented?

The represented arbors connect R8 setups to JT3, JT6, or JT33 drill chucks.

What capacity is shown for the keyed drill chuck?

The key-type light/medium-duty drill chuck has a 3/64 in. to 3/4 in. capacity.

How do I choose a chuck key?

Match the key to the compatible chuck size and pilot. The represented keys include 15/64 in. and 1/4 in. pilots.}]}},