Extension Drills | McMaster-Carr

Filter by

Overall Length

Shank Type

For Drill Bit Shank Type

For Drill Bit Shank Size

Shank Size

Material

For Bit Hex Shank Size

Drill Bit Size

DFARS Compliance

Hex Shank Size

For Bit Shank Type

Extension Style

Bit-Holding Mechanism

For Drill Bit System of Measurement

RoHS Compliance

REACH Compliance

For Use with

For Drill Bit Size Decimal Equivalent

Square Drive Size

For Maximum Drill Torque

Sold as

Unit of Measure

Forward

How can we improve?

192 Products

Drilling

Extensions for Hex-Shank Drill Bits

Tighten the set screws to secure the drill bit in the extension.

Quick-Change Extensions for Hex-Shank Drill Bits

A quick-change mechanism allows fast bit changes.

Adjustable-Length Quick-Change
Extensions for Hex-Shank Drill Bits

Adjust these extensions to the desired length. They have a quick-change mechanism for fast bit changes.

Extensions for Round-Shank Drill Bits

Attach to the shank of a drill bit to extend its reach.

Extensions for SDS-Plus-Shank Drill Bits

SDS-Plus shanks have two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These extensions have a quick-change mechanism for fast bit changes.

Fast-Cutting Drill Bit Sets for Wood

The screw point draws the bit in, quickly boring holes without applying pressure.

Changeable-Size SDS-Max-Shank Masonry
Core Drill Bits for Rotary Hammers

These bits allow you to easily switch to another size by changing only the bit body. They are hollow and cut with their outside edge for drilling holes larger than 1 1/2" in diameter.

Tight-Clearance Right-Angle Drilling Attachment Kits

Kits include a right-angle attachment, threaded-shank drill bits, extension, chuck adapter, and wrench. The attachment allows you to work in tight spaces with as little as 2" clearance.

Bit Adapters

Use hex-shank bits (also known as insert bits) in powered tools.

Screw-Guiding Bit Adapters

Keep bits from slipping. Insert a bit into the adapter, place a screw on the end of the bit, and slide the adapter sleeve over the screw. The sleeve retracts as the screw is driven. These adapters hold hex-shank bits (also known as insert bits) in powered tools.

Flexible Bit Adapters

Bend these adapters up to 90° to access hard-to-reach fasteners. Use them to hold hex-shank bits (also known as insert bits) in powered tools.

Secure-Hold Bit Adapters

Lock your bit into the adapter to prevent accidental disengagement. These adapters hold hex-shank bits (also known as insert bits) in powered tools.

Tight-Clearance Bit Adapters

The head is angled 90° to drive fasteners in tight spaces. Use these adapters to hold hex-shank bits (also known as insert bits) in powered tools.

Screw-Holding Bit Adapters

A magnetic ring at the end of the adapter holds flat-head screws in place to ensure good contact between the bit and screw. Use these adapters to hold hex-shank bits (also known as insert bits) in powered tools.

Bit Adapters for Bit Screwdrivers

Use a 4 mm bit in a bit driver that's designed for 1/4" bits.

Bit Adapters for Impact Drivers

These adapters are designed to withstand the high torque of impact drivers. They hold hex-shank bits (also known as insert bits).

Bit Adapters for Ratchet Wrenches

Attach these adapters to square-drive tools.

Secure-Hold Bit Adapters for Ratchet Wrenches

Lock your bit into the adapter to prevent accidental disengagement. These adapters attach to square-drive tools.

Torque-Measuring Bit Adapters

Eliminate the need for multiple bulky tools with these bit adapters. At less than 3 inches long, these compact adapters convert ¼” bit screwdriver handles and ¼” bits into torque screwdrivers so you can fasten to a specific torque.

Bit Adapters for Impact Wrenches

Designed to withstand high torque and force, these adapters fit the square drive on impact wrenches. Use with hex-shank bits (also known as insert bits).

Bit Adapters for Rotary Hammers

Insert these adapters into your SDS-drive rotary hammer to use it with hex-shank bits (also known as insert bits).

Drilling

Extensions for Hex-Shank Drill Bits

Quick-Change Extensions for Hex-Shank Drill Bits

Adjustable-Length Quick-ChangeExtensions for Hex-Shank Drill Bits

Extensions for Round-Shank Drill Bits

Extensions for SDS-Plus-Shank Drill Bits

Fast-Cutting Drill Bit Sets for Wood

Changeable-Size SDS-Max-Shank MasonryCore Drill Bits for Rotary Hammers

Tight-Clearance Right-Angle Drilling Attachment Kits

Bit Adapters

Bit Adapters

Screw-Guiding Bit Adapters

Flexible Bit Adapters

Secure-Hold Bit Adapters

Tight-Clearance Bit Adapters

Screw-Holding Bit Adapters

Bit Adapters for Bit Screwdrivers

Bit Adapters for Impact Drivers

Bit Adapters for Ratchet Wrenches

Secure-Hold Bit Adapters for Ratchet Wrenches

Torque-Measuring Bit Adapters

Bit Adapters for Impact Wrenches

Bit Adapters for Rotary Hammers

Adjustable-Length Quick-Change
Extensions for Hex-Shank Drill Bits

Changeable-Size SDS-Max-Shank Masonry
Core Drill Bits for Rotary Hammers