7.1mm Shank Size Drill Bits | McMaster-Carr

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System of Measurement

Drill Bit Size

For Use On

Stainless Steel

Material

High-Speed Steel

Finish

Length Class

Shank Size

0.005" to 0.04"

0.008" to 1/16"

0.012" to 0.015"

0.012" to 5/32"

0.012" to 0.291"

0.014" to 0.039"

0.014" to 5/32"

0.02" to 0.291"

0.028" to 5/32"

0.031" to 0.25"

7/64" to 19/32"

0.2 mm to 1.5 mm

0.3 mm to 0.4 mm

0.3 mm to 6.5 mm

0.3 mm to 7.3 mm

0.3 mm to 7.4 mm

0.4 mm to 1.5 mm

0.4 mm to 6.5 mm

0.4 mm to 10 mm

0.5 mm to 6.5 mm

0.5 mm to 7.4 mm

0.5 mm to 10 mm

0.5 mm to 13 mm

0.5 mm to 16 mm

0.5 mm to 19 mm

0.6 mm to 7.3 mm

0.6 mm to 7.4 mm

0.7 mm to 6.5 mm

0.8 mm to 10 mm

1.1 mm to 13 mm

1.5 mm to 10 mm

1.5 mm to 13 mm

1.6 mm to 12.7 mm

1.6 mm to 13 mm

1.6 mm to 16 mm

2.5 mm to 10 mm

2.5 mm to 13 mm

2.5 mm to 16 mm

4.5 mm to 19 mm

5 mm to 20.3 mm

5.2 mm to 25.4 mm

6.4 mm to 9.5 mm

10 mm to 25.4 mm

Decimal Size Equivalent

Drill Bit Point Type

Length

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Flute Direction

Flute Type

Number of Flutes

Point Angle

REACH

RoHS

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Sold As

Bit Style

Maximum Drilling Depth

Overall Length

Shank Type

Certification

Military Specification

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About Drill Bits

Compare material, finish, length class, and decimal size equivalents.

Material

High-Speed Steel

High-Speed Steel

Versatile bits resist heat and wear to stay sharp

Cobalt Steel

Resist higher temperatures and last twice as long as high-speed steel

Performance

Chip Clearing

Prevent clogs and dissipate heat

High-Speed Steel Drill Bits

Jobbers' Length

Round Shank

Split

Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.

					Shank				Each
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type		1-9	10-Up
Jobbers' Length







				Gold Oxide

				7.1	0.2795"	108	71.4	Round	7.1 mm	Split	30565A295	00000	00000

Chip-Clearing Cobalt Steel Drill Bits

Jobbers' Length

Parabolic Flute

Round Shank

Split

Avoid clogs and dissipate heat with cobalt bits that last at least twice as long as high-speed steel. The flutes clear chips to improve coolant flow and prevent damage to the bit and the hole. They also speed up drilling since you don't have to stop to clear the bit manually.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Uncoated—Polished to eject chips, these are also known as bright finish bits.

						Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Flute Type	Type	Size, mm	Drill Bit Point Type		Each
Jobbers' Length







				Uncoated

				7.1	0.2795"	109	67	Parabolic	Round	7.1	Split	2771N769	000000

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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)