Carbide Drill Bit for Steel

Suitable for steel parts processing. Only sufficiently solid support and guidance can ensure the machining accuracy of holes and improve production stability and drill life. The core thickness of the drill bit is thicker than the general drill bit, the higher the rigidity. Spiral angle is smaller than general drill bit, the higher the strength of torsion resistance.

Specifications of Carbide Drill Bit for Steel

Solid carbide spiral drill for steel

Engineering Data

special point grinding
special chip flute geometry
web thickness reinforced
30° RH helix

Solid carbide spiral drill for steel

d1				d2	d1				d2
(m7)	L3	L2	L1	(h6)	(m7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	14	20	62	6	10.5	40	55	102	12
3.3	14	20	62	6	11	40	55	102	12
3.5	14	20	62	6	11.5	40	55	102	12
4	17	24	66	6	11.8	40	55	102	12
4.2	17	24	66	6	12	40	55	102	12
4.5	17	24	66	6	12.5	43	60	107	14
5	20	28	66	6	13	43	60	107	14
5.5	20	28	66	6	13.5	43	60	107	14
6	20	28	66	6	14	43	60	107	14
6.5	24	34	79	8	14.5	45	65	115	16
6.6	24	34	79	8	15	45	65	115	16
6.8	24	34	79	8	15.5	45	65	115	16
7	24	34	79	8	16	45	65	115	16
7.5	29	41	79	8	16.5	51	73	123	18
8	29	41	79	8	17	51	73	123	18
8.5	35	45	89	10	17.5	51	73	123	18
9	35	45	89	10	18	51	73	123	18
9.5	35	45	89	10	18.5	55	79	131	20
10	35	45	89	10	19	55	79	131	20
10.2	40	55	102	12	19.5	55	79	131	20
					20	55	79	131	20

Engineering Data

special point grinding
special chip flute geometry
web thickness reinforced
30° RH helix

Solid carbide spiral drill for steel

d1				d2	dl				d2
(m7)	L3	L2	L1	(h6)	(m7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	14	20	62	3	8.5	35	47	89	8.5
3.1	14	20	62	3.1	8.6	35	47	89	8.6
3.2	14	20	62	3	8.7	35	47	89	8.7
3.3	14	20	62	3.3	8.8	35	47	89	8.8
3.4	14	20	62	3.4	8.9	35	47	89	8.9
3.5	14	20	62	3.5	9	35	47	89	9
3.6	14	20	62	3.5	9	35	47	89	9.1
3.7	14	20	62	3.7	9.2	35	47	89	9.2
3.8	14	20	62	3.7	9.3	35	47	89	9.3
3.9	14	20	62	3.9	9.4	35	47	89	9.4
	17	24	66	4	9.5	35	47	89	9.5
4	17	24	66	4.1	9.6	35	47	89	9.6
4.1	17	24	66	4.2	9.7	35	47	89	9.7
4.3	17	24	66	4.3	9.8	35	47	89	9.8
4.4	17	24	66	4.4	9.9	35	47	89	9.9
4.5	17	24	66	4.5	10	35	47	89	10
4.6	17	24	66	4.6	10.1	35	47	89	10.1
4.7	7	24	66	4.7	10.2	40	55	102	10.2
4.8	17	24	66	4.8	10.3	40	55	102	10.3
4.9	17	24	66	4.9	10.4	40	55	102	10.4
5	20	28	66	5	10.5	40	55	102	10.5
5.1	20	28	66	5.1	10.6	40	55	102	10.6
5.2.	20	28	66	5.2	10.7	40	55	102	10.7
5.3	20	28	66	5.3	10.8	40	55	102	10.8
5.4	20	28	66	5.4	10.9	40	55	102	10.9
5.5	20	28	66	5.5	11	40	55	102	11
5.6	20	28	66	5.6	11.1	40	55	102	11.1
5	20	28	66	5	11.2	40	55	102	11.2
5.8	20	28	66	5.8	11.3	40	55	102	11.3
5.9	20	28	66	5.9	11.4	40	55	102	11.4
6	20	28	66	6	11.5	40	55	102	11.5
6.1	20	28	66	6.1	11.6	40	55	102	11.6
6.2	20	28	66	6.2	11.7	40	55	102	11.7
6.3	20	28	66	6.3	11.8	40	55	102	11.8
6.4	20	28	66	6.4	11.9	40	55	102	11.9
6.5	24	34	79	6.5	12	40	55	102	12
6.6	24	34	79	6.6	12.5	43	60	107	12.5
6	24	34	79	6	12.8	43	60	107	12.8
6	24	34	79	6	13	43	60	107	13
6.9	24	34	79	6.9	13.5	43	60	107	13.5
7	24	34	79	7	13.9	43	60	107	13.9
7.1	24	34	79	7.1	14	43	60	107	14
7.2	24	34	79	7.2	14.5	45	65	115	14.5
7.3	24	34	79	7.3	14.9	45	65	115	14.9
7.4	24	34	79	7.4	15	45	65	115	15
7.5	29	41	79	7.5	15.5	45	65	115	15.5
7.6	29		79	7.6	16	45	65	115	16
7.7	29	41	79	7.7	16.5	51	73	123	16.5
7.8	29		79	7.8	17	51	73	123	17
7.9	29	41	79	7.9	17.5	51	73	123	17.5
8	29	41	79	8	18	51	73	123	18
8.1	29	41	79	8.1	18.5	55	79	131	18.5
8.2	29		79	8.2	19	55	79	131	19
8	29	41	79	8	19.5	55	79	131	19.5
8.4	29	41	79	8.4	20	55	79	131	20

Solid carbide spiral drill for steel

Engineering Data

special point grinding
special chip flute geometry
web thickness reinforced
30° RH helix

Solid carbide spiral drill for steel

dl				d2	dl				d2
(m7)	L3	L2	L1	(h6)	(m7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	23	28	66	6	8.2	49	61	103	10
3.1	23	28	66	6	8.3	49	61	103	10
3.2	23	28	66	6	8.4	49	61	103	0
3.3	23	28	66	6	8.5	49	61	103	10
3.4	23	28	66	6	8.6	49	61	103	10
3.5	23	28	66	6	8.7	49	61	103	0
3.6	23	28	66	6	8.8	49	61	103	10
3.7	23	28	66	6	8.9	49	61	103	10
3.8	29	36	74	6	9	49	61	103	10
3.9	29	36	74	6	9.1	49	61	103	10
4	29	36	74	6	9.2	49	61	103	10
4.1	29	36	74	6	9.3	49	61	103	10
4.2	29	36	74	6	9.4	49	61	103	10
4.3	29	36	74	6	9.5	49	61	103	10
4.4	29	36	74	6	9.6	49	61	103	10
4.5	29	36	74	6	9.7	49	61	103	10
4.6	29	36	74	6	9.8	49	61	103	10
4.7	29	36	74	6	9.9	49	61	103	10
4.8	35	44	82	6	10	49	61	103	10
4.9	35	44	82	6	10.1	56	71	118	12
5	35	44	82	6	10.2	56	71	118	12
5.1	35	44	82	6	10.3	56	71	118	12
5.1	35	44	82	6	10.4	56	71	118	12
5.3	35	44	82	6	10.5	56	71	118	12
5.4	35	44	82	6	10.6	56	71	118	12
5.5	35	44	82	6	10.7	56	71	18	12
5.6	35	44	82	6	10.8	56	71	118	12
5.7	35	44	82	6	10.9	56	71	118	12
5.8	35	44	82	6	11	56	71	118	12
5.9	35	44	82	6	11.1	56	71	118	12
6	35	44	82	6	11.2	56	71	118	12
6.1	43	53	91	8	11.3	56	71	118	12
6.2	43	53	91	8	11.4	56	71	118	12
6.3	43	53	91	8	11.5	56	71	118	12
6.4	43	53	91	8	11.6	56	71	118	12
6.5	43	53	91	8	11.7	56	71	18	12
6.6	43	53	91	8	11.8	56	71	18	12
6.7	43	53	91	8	11.9	56	71	118	12
6.8	43	53	91	8	12	56	71	118	12
6.9	43	53	91	8	12.5	60	77	124	14
	43	53	91	8	12.8	60	77	124	14
7	43	53	91	8	13	60	77	124	14
7.2	43	53	91	8	13.5	60	77	124	14
7.3	43	53	91	8	13.8	60	77	124	14
7.4	43	53	91	8	14	60	77	124	14
7.5	43	53	91	8	14.5	63	83	133	16
7.6	43	53	91	8	14.8	63	83	133	16
7.7	43	53	91	8	15	63	83	133	16
7.8	43	53	91	8	15.5	63	83	133	16
7.9	43	53	91	8	15.8	63	83	133	16
8	43	53	91	8	16	63	83	133	16
8.1	49	61	103	10

Solid carbide spiral drill for steel

Engineering Data

special point grinding
special chip flute geometry
web thickness reinforced
30° RH helix

Solid carbide spiral drill for steel

d1				d2	d1				d2
(m7)	L3	L2	L1	(h6)	(m7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	14	20	62	6	8.2	35	45	89	10
3.1	14	20	62	6	8.3	35	45	89	0
3.2	14	20	62	6	8.4	35	45	89	0
3.3	14	20	62	6	8.5	35	47	89	10
3.4	14	20	62	6	8.6	35	47	89	10
3.5	14	20	62	6	8.7	35	47	89	10
3.6	14	20	62	6	8.8	35	47	89	0
3.7	14	20	62	6	8.9	35	47	89	10
3.8	17	24	66	6	9	35	47	89	10
3.9	17	24	66	6	9.1	35	47	89	0
4	17	24	66	6	9.2	35	47	89	10
4.1	17	24	66	6	9.3	35	47	89	0
4.2	17	24	66	6	9.4	35	47	89	10
4.3	17	24	66	6	9.5	35	47	89	10
4.4	17	24	66	6	9.6	35	47	89	10
4.5	17	24	66	6	9.7	35	47	89	10
4.6	17	24	66	6	9	35	47	89	10
4.7	17	24	66	6	9.9	35	47	89	10
4.8	20	28	66	6	10	35	47	89	10
4.9	20	28	66	6	10.1	40	55	102	12
5	20	28	66	6	10.2	40	55	102	12
5.1	20	28	66	6	10.3	40	55	102	12
5.1	20	28	66	6	10.4	40	55	102	12
5.3	20	28	66	6	10.5	40	55	102	12
5.4	20	28	66	6	10.6	40	55	102	12
5.5	20	28	66	6	10.7	40	55	102	12
5.6	20	28	66	6	10.8	40	55	102	12
5.7	20	28	66	6	10.9	40	55	102	12
5.8	20	28	66	6	11	40	55	102	12
5.9	20	28	66	6	11.2	40	55	102	12
6	20	28	66	6	11.5	40	55	102	12
6.1	24	34	79	8	11.8	40	55	102	12
6.2	24	34	79	8	12	40	55	102	12
6.3	24	34	79	8	12.5	43	60	107	14
6.4	24	34	79	8	12.7	43	60	107	14
6.5	24	34	79	8	13	43	60	107	14
6.6	24	34	79	8	13.5	43	60	107	14
6.7	24	34	79	8	14	43	60	107	14
6.8	24	34	79	8	14.5	45	65	115	16
6.9	24	34	79	8	15	45	65	115	16
7	24	34	79	8	15.5	45	65	15	16
7.1	29	41	79	8	16	45	65	115	16
7	29	41	79	8	16.5	51	73	123	18
7.3	29	41	79	8	17	51	73	123	18
7.4	29	41	79	8	17.5	51	73	123	18
7.5	29	41	79	8	18	51	73	123	18
7.6	29	41	79	8	18.5	55	79	131	20
7.7	29	41	79	8	19	55	79	131	20
7.8	29	41	79	8	19.5	55	79	131	20
7.9	29	41	79	8	20	55	79	131	20
8	29	41	79	8	22	75	5	165	25
8.1	35	47	89	10

Steel processing integral hard alloy spiral drill 8 × D

Engineering Data

special point grinding
special chip flute geometry
web thickness reinforced
30° RH helix

Steel processing integral hard alloy spiral drill 8 × D

d1				d2	d1				d2
(m7)	L3	L2	L1	(h6)	(m7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	29	34	72	6	7.8	66	76	116	8
3.1	29	34	72	6	8	66	76	116	8
3.2	29	34	72	6	8.5	80	95	142	10
3.3	29	34	72	6	9	80	95	142	10
3.4	29	34	72	6	9.5	80	95	142	10
3.5	29	34	72	6	10	80	95	142	10
3.6	29	34	72	6	10.2	96	114	162	12
3.7	29	34	72	6	10.5	96	114	162	12
3.8	36	43	81	6	11	96	114	162	12
3.9	36	43	81	6	11.5	96	114	162	12
4	36	43	81	6	12	96	114	162	12
4	36	43	81	6	12.5	112	131	178	14
4.2	36	43	81	6	13	112	131	178	14
4.3	36	43	81	6	13.5	112	131	178	14
4.4	36	43	81	6	14	112	131	178	14
4.5	36	43	81	6	14.5	128	152	203	16
4.6	36	43	81	6	15	128	152	203	16
4.7	36	43	81	6	15.5	128	152	203	16
4.8	48	57	95	6	16	128	152	203	16
4.9	48	57	95	6	16.5	144	171	222	18
5	48	57	95	6	17	144	171	222	18
5.5	48	57	95	6	17.5	144	171	222	18
6	48	57	95	6	18	144	171	222	18
6.5	64	76	114	8	18.5	160	190	243	20
6.8	64	76	114	8	19	160	190	243	20
7	66	76	116	8	19.5	160	190	243	20
7.5	66	76	116	8	20	160	190	243	20

Steel processing integral hard alloy spiral drill 12 × D

Engineering Data

special point grinding
special chip flute geometry
web thickness reinforced
30° RH helix

Steel processing integral hard alloy spiral drill 12 × D

dl				d2	dl				d2
(m7)	L3	L2	L1	(h6)	(m7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
4	58	77	121	6	10	110	130	175	10
4.2	58	77	121	6	10.2	142	159	209	12
4.5	58	77	121	6	10.5	142	159	209	12
5	70	82	121	6	11	142	159	209	12
5.5	70	82	121	6	11.5	142	159	209	12
6	70	82	121	6	12	142	159	209	12
6.5	94	106	146	8	12.5	166	183	233	14
6.8	94	106	146	8	13	166	183	233	14
7	94	106	146	8	13.5	166	183	233	14
7.5	94	106	146	8	14	166	183	233	14
7.8	94	106	146	8	14.5	192	207	260	16
8	94	106	146	8	15	192	207	260	16
8.5	110	130	175	10	15,5	192	207	260	16
9	110	130	175	10	16	192	207	260	16
9.5	110	130	175	10

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Carbide Drill Bit for Steel

Specifications of Carbide Drill Bit for Steel

Steel processing integral hard alloy spiral drill 8 × D

Steel processing integral hard alloy spiral drill 12 × D

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