Hole Guides | McMaster-Carr

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System of Measurement

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For Drill Bit Size Decimal Equivalent

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For Use With

Flexible-Shaft Drill Bits

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Rivets

Screws

Threaded Drill Bushings

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Export Control Classification Number (ECCN)

EAR99

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Rail Height

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Handle Side-to-Side Range of Motion

For Nut Size

Bit Shank Size

T-Slotted Framing Rail Profile

Thickness

48 Products

Fabricating and Machining

Drill Bit Guides

Drill precise holes without building a fixture

13 products

Drill Guides

Pair with handheld drills to create precise holes, no drill press required

2 products

Hole Saw Pilots

Center your hole saw when enlarging existing holes

2 products

Measuring and Inspecting

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

13 products

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

1 product

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

13 products