DIN 1897 Drill Bits | McMaster-Carr

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Specifications Met

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

Yes

REACH

Compliant

RoHS

Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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167 Products

About Drill Bits

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

High-Speed Steel Drill Bits

Short Length

Round Shank

Standard

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.

Short Length—The most rigid bits for drilling the straightest holes.

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.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

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







				Black Oxide

				1.0	0.0394"	26	3.9	Round	1 mm	Standard	28255A11	00000


				1.1	0.0433"	28	2.7	Round	1.1 mm	Standard	28255A71	0000
				1.2	0.0472"	30	3	Round	1.2 mm	Standard	28255A72	0000
				1.3	0.0512"	30	5.4	Round	1.3 mm	Standard	28255A13	0000
				1.4	0.0551"	32	3.5	Round	1.4 mm	Standard	28255A73	0000
				1.5	0.0591"	32	5.9	Round	1.5 mm	Standard	28255A15	0000
				1.6	0.063"	34	4	Round	1.6 mm	Standard	28255A74	0000
				1.7	0.0669"	34	4.2	Round	1.7 mm	Standard	28255A75	0000
				1.8	0.0709"	36	4.5	Round	1.8 mm	Standard	28255A76	0000
				1.9	0.0748"	36	4.7	Round	1.9 mm	Standard	28255A77	0000
				2.0	0.0787"	38	8	Round	2 mm	Standard	28255A17	0000


				2.1	0.0827"	38	5.2	Round	2.1 mm	Standard	28255A78	0000
				2.2	0.0866"	40	5.5	Round	2.2 mm	Standard	28255A79	0000
				2.4	0.0945"	43	9.1	Round	2.4 mm	Standard	28255A19	0000
				2.5	0.0984"	43	9	Round	2.5 mm	Standard	28255A21	0000
				2.6	0.1024"	43	6.5	Round	2.6 mm	Standard	28255A81	0000
				2.7	0.1063"	46	6.7	Round	2.7 mm	Standard	28255A82	0000
				2.8	0.1102"	46	7	Round	2.8 mm	Standard	28255A83	0000
				2.9	0.1142"	46	7.2	Round	2.9 mm	Standard	28255A84	0000
				3.0	0.1181"	46	9.9	Round	3 mm	Split	28255A23	0000
				3.1	0.122"	49	18	Round	3.1 mm	Split	28255A112	0000


				3.2	0.126"	49	11.6	Round	3.2 mm	Split	28255A25	0000
				3.3	0.1299"	49	11.4	Round	3.3 mm	Split	28255A26	0000
				3.4	0.1339"	52	13.1	Round	3.4 mm	Split	28255A27	0000
				3.5	0.1378"	52	12.9	Round	3.5 mm	Split	28255A31	0000
				3.6	0.1417"	52	9	Round	3.6 mm	Split	28255A85	0000
				3.7	0.1457"	52	20	Round	3.7 mm	Split	28255A113	0000
				4.0	0.1575"	55	13.9	Round	4 mm	Split	28255A33	0000
				4.1	0.1614"	55	10.2	Round	4.1 mm	Split	28255A86	0000
				4.2	0.1654"	55	13.5	Round	4.2 mm	Split	28255A35	0000
				4.3	0.1693"	58	10.7	Round	4.3 mm	Split	28255A87	0000


				4.4	0.1732"	58	11	Round	4.4 mm	Split	28255A88	0000
				4.5	0.1772"	58	14.9	Round	4.5 mm	Split	28255A37	0000
				4.6	0.1811"	58	11.5	Round	4.6 mm	Split	28255A89	0000
				4.8	0.189"	62	12	Round	4.8 mm	Split	28255A91	0000
				5.0	0.1969"	62	15.9	Round	5 mm	Split	28255A39	0000
				5.1	0.2008"	62	12.7	Round	5.1 mm	Split	28255A92	0000
				5.2	0.2047"	62	13	Round	5.2 mm	Split	28255A93	0000
				5.3	0.2087"	62	13.2	Round	5.3 mm	Split	28255A94	0000
				5.4	0.2126"	66	13.5	Round	5.4 mm	Split	28255A95	0000
				5.5	0.2165"	66	17	Round	5.5 mm	Split	28255A41	0000


				5.6	0.2205"	66	14	Round	5.6 mm	Split	28255A96	0000
				5.7	0.2244"	66	28	Round	5.7 mm	Split	28255A114	0000
				5.8	0.2283"	66	28	Round	5.8 mm	Split	28255A115	0000
				6.0	0.2362"	66	16	Round	6 mm	Split	28255A43	0000
6.2				0.2441"	70	31	Round	6.2 mm	Split	28255A116	0000
6.4	0.252"			70	31	Round	6.4 mm	Split	28255A117	0000
6.5	0.2559"			70	18	Round	6.5 mm	Split	28255A45	0000
6.6	0.2598"			70	31	Round	6.6 mm	Split	28255A118	0000
6.8	0.2677"			74	20.4	Round	6.8 mm	Split	28255A47	0000
6.9	0.2717"	74		34	Round	6.9 mm	Split	28255A119	0000
7.0	0.2756"	74	19.9	Round	7 mm	Split	28255A49	0000
7.2	0.2835"	74	34	Round	7.2 mm	Split	28255A121	0000
7.5	0.2953"	74	18.9	Round	7.5 mm	Split	28255A51	0000
8.0	0.315"	79	20.9	Round	8 mm	Split	28255A53	0000
8.1	0.3189"	79	37	Round	8.1 mm	Split	28255A122	0000
8.4	0.3307"	79	37	Round	8.4 mm	Split	28255A123	0000
8.5	0.3346"	79	20	Round	8.5 mm	Split	28255A55	0000
8.7	0.3425"	84	40	Round	8.7 mm	Split	28255A124	0000
9.0	0.3543"	84	22	Round	9 mm	Split	28255A57	0000
9.1	0.3583"	84	40	Round	9.1 mm	Split	28255A125	0000
9.2	0.3622"	84	40	Round	9.2 mm	Split	28255A126	0000
9.3	0.3661"	84	40	Round	9.3 mm	Split	28255A127	0000
9.5	0.374"	84	40	Round	9.5 mm	Split	28255A128	0000
9.7	0.3819"	89	43	Round	9.7 mm	Split	28255A129	00000
10.0	0.3937"	89	22.9	Round	10 mm	Split	28255A61	0000
10.2	0.4016"	89	43	Round	10.2 mm	Split	28255A131	0000
10.5	0.4134"	89	43	Round	10.5 mm	Split	28255A132	00000
10.8	0.4252"	95	47	Round	10.8 mm	Split	28255A133	00000
11.0	0.4331"	95	24.9	Round	11 mm	Split	28255A63	00000
11.5	0.4528"	95	47	Round	11.5 mm	Split	28255A135	00000
11.8	0.4646"	95	47	Round	11.8 mm	Split	28255A136	00000
12.0	0.4724"	102	27	Round	12 mm	Split	28255A65	00000
12.2	0.4803"	102	51	Round	12.2 mm	Split	28255A137	00000
12.5	0.4921"	102	51	Round	12.5 mm	Split	28255A138	00000
13.0	0.5118"	102	32.5	Round	13 mm	Split	28255A97	00000



		Titanium Nitride (TiN) Coated

		2.3	0.0906"	40	5.7	Round	2.3 mm	Split	2979N47	0000


		2.4	0.0945"	43	6	Round	2.4 mm	Split	2979N48	0000
		2.5	0.0984"	43	14	Round	2.5 mm	Split	2979N15	0000
		2.6	0.1024"	43	6.5	Round	2.6 mm	Split	2979N49	0000
		2.7	0.1063"	46	6.7	Round	2.7 mm	Split	2979N51	0000
		2.9	0.1142"	46	7.2	Round	2.9 mm	Split	2979N52	0000
		3.0	0.1181"	46	16	Round	3 mm	Split	2979N16	0000
		3.1	0.122"	49	7.7	Round	3.1 mm	Split	2979N53	0000
		3.2	0.126"	49	8	Round	3.2 mm	Split	2979N54	0000
		3.3	0.1299"	49	18	Round	3.3 mm	Split	2979N17	0000
		3.4	0.1339"	52	8.5	Round	3.4 mm	Split	2979N55	0000


		3.5	0.1378"	51	20.1	Round	3.5 mm	Split	2979N18	0000
		4.0	0.1575"	56	22.1	Round	4 mm	Split	2979N19	0000
		4.1	0.1614"	55	10.2	Round	4.1 mm	Split	2979N56	0000
		4.2	0.1654"	56	22.1	Round	4.2 mm	Split	2979N2	0000
		4.5	0.1772"	57	23.9	Round	4.5 mm	Split	2979N21	0000
		5.0	0.1969"	62	26	Round	5 mm	Split	2979N22	0000
		5.2	0.2047"	62	13	Round	5.2 mm	Split	2979N57	0000
		5.5	0.2165"	67	27.9	Round	5.5 mm	Split	2979N23	0000
		6.0	0.2362"	67	27.9	Round	6 mm	Split	2979N24	0000
		6.4	0.252"	70	16	Round	6.4 mm	Split	2979N58	0000


		6.5	0.2559"	70	30.5	Round	6.5 mm	Split	2979N25	0000
		6.7	0.2638"	70	30.5	Round	6.7 mm	Split	2979N26	0000
		6.8	0.2677"	74	17	Round	6.8 mm	Split	2979N59	0000
		7.0	0.2756"	73	33	Round	7 mm	Split	2979N27	0000
		7.5	0.2953"	74	18.7	Round	7.5 mm	Split	2979N61	0000
		8.0	0.315"	79	38.1	Round	8 mm	Split	2979N28	0000
		8.5	0.3346"	79	38.1	Round	8.5 mm	Split	2979N29	00000
		9.0	0.3543"	84	40.6	Round	9 mm	Split	2979N3	00000
		9.5	0.374"	84	23.7	Round	9.5 mm	Split	2979N62	00000
		10.0	0.3937"	89	43.2	Round	10 mm	Split	2979N31	00000


		10.2	0.4016"	89	43.2	Round	10.2 mm	Split	2979N32	00000
		10.5	0.4134"	89	26.2	Round	10.5 mm	Split	2979N63	00000
		11.0	0.4331"	95	48.3	Round	11 mm	Split	2979N33	00000
		12.0	0.4724"	102	50.8	Round	12 mm	Split	2979N34	00000
		13.0	0.5118"	102	50.8	Round	13 mm	Split	2979N35	00000
		14.0	0.5512"	106	53.3	Round	14 mm	Split	2979N36	00000




				Uncoated

				1.0	0.0394"	25	6.1	Round	1 mm	Standard	2979N11	0000


				1.1	0.0433"	28	2.7	Round	1.1 mm	Standard	2979N42	0000
				1.3	0.0512"	30	3.2	Round	1.3 mm	Standard	2979N43	0000
				1.5	0.0591"	32	8.9	Round	1.5 mm	Standard	2979N12	0000
				1.6	0.063"	33	9.9	Round	1.6 mm	Standard	2979N13	0000
				1.8	0.0709"	36	4.5	Round	1.8 mm	Standard	2979N46	0000
				2.0	0.0787"	38	11.9	Round	2 mm	Split	2979N14	0000

Cobalt Steel Drill Bits

Short Length

Round Shank


Standard	Split

Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.

Short Length—The most rigid bits for drilling the straightest holes.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

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	Type	Size	Drill Bit Point Type		Each
Short Length







				Titanium Nitride (TiN) Coated

				1.0	0.0394"	25	4.1	Round	1 mm	Split	2456N162	00000


				1.5	0.0591"	33	6.1	Round	1.5 mm	Split	2456N139	0000
				1.6	0.063"	33	6.9	Round	1.6 mm	Split	2456N141	0000
				2.0	0.0787"	38	8.1	Round	2 mm	Split	2456N142	0000
				2.05	0.0807"	38	7.9	Round	2.05 mm	Split	2456N143	0000
				2.5	0.0984"	43	9.1	Round	2.5 mm	Split	2456N144	0000
				2.6	0.1024"	43	8.9	Round	2.6 mm	Split	2456N145	0000
				3.3	0.1299"	49	11.4	Round	3.3 mm	Split	2456N146	0000
				3.5	0.1378"	52	13	Round	3.5 mm	Split	2456N147	0000
				4.0	0.1575"	56	14	Round	4 mm	Split	2456N148	0000
				4.2	0.1654"	56	13.7	Round	4.2 mm	Split	2456N149	0000


				4.5	0.1772"	59	15	Round	4.5 mm	Split	2456N151	0000
				5.0	0.1969"	62	16	Round	5 mm	Split	2456N152	0000
				5.5	0.2165"	67	17	Round	5.5 mm	Split	2456N153	0000
				6.0	0.2362"	67	16	Round	6 mm	Split	2456N154	00000
				6.4	0.252"	70	18.3	Round	6.4 mm	Split	2456N155	00000
				6.7	0.2638"	70	17.5	Round	6.7 mm	Split	2456N156	00000
				7.0	0.2756"	75	20.1	Round	7 mm	Split	2456N157	00000
				8.0	0.315"	79	21.1	Round	8 mm	Split	2456N158	00000
				8.5	0.3346"	79	20.1	Round	8.5 mm	Split	2456N159	00000
				9.0	0.3543"	84	22.1	Round	9 mm	Split	2456N161	00000




						Uncoated

						1.0	0.0394"	25	4.1	Round	1 mm	Standard	2456N111	0000


						1.5	0.0591"	32	6.1	Round	1.5 mm	Standard	2456N112	0000
						1.6	0.063"	33	6.9	Round	1.6 mm	Split	2456N113	0000
						2.0	0.0787"	38	8.1	Round	2 mm	Split	2456N114	0000
						2.05	0.0807"	38	7.9	Round	2.05 mm	Split	2456N115	0000
						2.5	0.0984"	43	9.1	Round	2.5 mm	Split	2456N116	0000
						2.6	0.1024"	43	8.9	Round	2.6 mm	Split	2456N117	0000
						3.3	0.1299"	49	11.4	Round	3.3 mm	Split	2456N118	0000
						3.5	0.1378"	52	13	Round	3.5 mm	Split	2456N119	0000
						4.0	0.1575"	56	14	Round	4 mm	Split	2456N121	0000
						4.2	0.1654"	56	13.7	Round	4.2 mm	Split	2456N122	0000


						4.5	0.1772"	59	15	Round	4.5 mm	Split	2456N123	0000
						5.0	0.1969"	62	16	Round	5 mm	Split	2456N124	0000
						5.5	0.2165"	67	17	Round	5.5 mm	Split	2456N125	0000
						6.0	0.2362"	67	16	Round	6 mm	Split	2456N126	0000
						6.4	0.252"	70	18.3	Round	6.4 mm	Split	2456N127	0000
						6.7	0.2638"	70	17.5	Round	6.7 mm	Split	2456N128	0000
						7.0	0.2756"	75	20.1	Round	7 mm	Split	2456N129	0000
						8.0	0.315"	79	21.1	Round	8 mm	Split	2456N131	00000
						8.5	0.3346"	79	20.1	Round	8.5 mm	Split	2456N132	00000
9.0						0.3543"	84	22.1	Round	9 mm	Split	2456N133	00000


10.0	0.3937"					89	23.1	Round	10 mm	Split	2456N134	00000
10.2	0.4016"					89	22.6	Round	10.2 mm	Split	2456N135	00000
11.0	0.4331"	95				24.9	Round	11 mm	Split	2456N136	00000
12.0	0.4724"	102	26.9			Round	12 mm	Split	2456N137	00000
13.0	0.5118"	102	24.9			Round	13 mm	Split	2456N138	00000