Drill Extensions | McMaster-Carr

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For Drill Bit Size Decimal Equivalent

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DFARS Specialty Metals

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For Bit Hex Shank Size

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Titanium Nitride (TiN) Coated

For Bit Shank Type

For Arbor Shank Size

Hex Shank Size

1,222 Products

Drill Bit Extensions

Extensions for Round-Shank Drill Bits

Expand the reach of round-shank drill bits

107 products

Extensions for Hex-Shank Drill Bits

Expand the reach of hex-shank drill bits

8 products

Extensions for SDS-plus-Shank Drill Bits

Compatible with SDS-Plus rotary hammers

2 products

Extensions for Quick-Change Hex-Shank Drill Bits

A quick-change mechanism allows for fast bit changes

2 products

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

Slide and lock the quick-release coupling to adjust your length
A quick-change mechanism allows for fast bit changes

2 products

Other Products

Hole Saw Arbor Extensions

Reach your hole saw into spots where your drill is too big to fit

2 products

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

65 products

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

990 products

Driver Extension Adapters

Create a tool that’s as long as you need to reach deeply recessed fasteners

44 products