9.9mm Shank Size Drill Bits | McMaster-Carr

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Stainless Steel

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Viking Norseman Drill

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

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Decimal Size Equivalent

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"

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7/64" to 19/32"

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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

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2 Products

About Drill Bits

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

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

				9.9	0.3898"	133	67.2	Round	9.9 mm	Standard	Dormer Pramet	2958A148	000000




						Black/Gold Oxide

						9.9	0.3898"	130	92.1	Round	9.9 mm	Split	Viking Norseman Drill	30565A326	00000

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