Shank Extensions | McMaster-Carr

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System of Measurement

Overall Length

For Drill Bit Shank Type

Drill Bit Size

Shank Type

Shank Size

For Drill Bit Shank Size

Square Drive Size

Socket Type

Secure-Hold Extension

Socket

Square Drive Size Adapter

For Bit Hex Shank Size

Drive Style

Material

For Drill Bit Size Decimal Equivalent

Drive Size

Hex Shank Size

Finish

Magnesium Phosphate Coated

For Bit Shank Type

Extension Style

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Sold As

REACH

RoHS

Compliant with Exemptions

Drive Type

Bit-Holding Mechanism

Ball Detent

Magnet

Magnetic Quick-Change Chuck

486 Products

Drill Bit Extensions

Extensions for Hex-Shank Drill Bits

Expand the reach of hex-shank drill bits

8 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

Extensions for Round-Shank Drill Bits

Expand the reach of round-shank drill bits

107 products

Extensions for SDS-plus-Shank Drill Bits

Compatible with SDS-Plus rotary hammers

2 products

Other Products

Bit Adapters

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

65 products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

196 products

Hole Saw Arbor Extensions

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

2 products

Screwdrivers

Tighten and loosen screws

1 product

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

56 products

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

20 products