7.6mm Shank Size Drill Bits | McMaster-Carr

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For Use On

Stainless Steel

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High-Speed Steel

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Black/Gold Oxide

Bit Style

Shank Size

0.005" to 0.04"

0.008" to 1/16"

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0.012" to 5/32"

0.012" to 0.291"

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1.6 mm to 16 mm

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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

Point Angle

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Flute Type

Length

Manufacturer

Viking Norseman Drill

Number of Flutes

REACH

RoHS

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

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Overall Length

Shank Type

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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

Standard

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.

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.

Black/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
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type	Mfr.		Each
Jobbers' Length







				Black Oxide

				7.6	0.2992"	117	54.2	Round	7.6 mm	Standard	Dormer Pramet	2958A123	00000




						Black/Gold Oxide

						7.6	0.2992"	111	73	Round	7.6 mm	Split	Viking Norseman Drill	30565A301	0000

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	Mfr.		Each
Jobbers' Length







				Uncoated

				7.6	0.2992"	117	73	Parabolic	Round	7.6	Split	Viking Norseman Drill	2771N774	000000

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