Universal Carbide Drill Bit

A cost-effective carbide drill with excellent machining performance for a wide range of materials. Very rapid chip removal, four-sided self-centering ensures hole accuracy, optimum cutting edge cross-correction for low drag, stable torque, and fine chip breakage for stable machining.

Specifications of Universal Carbide Drill Bit

Sodid carbide spiral drill for common machining

Engineering Data

four-sided grinding
left hand cutting
web thinning DIN 1412 form A
30° RH helix

carbide drill bits engineering data

d1				d2	cd1				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mn	mm	mm
3	12	16	46	3	5.9	21	28	66	5.9
3.1	14	18	49	3.1	6	21	28	66	6
3.2	14	18	49	3.2	6.1	23	28	70	6.1
3.3	14	18	49	3.3	6.2	23	31	70	6.2
3.4	15	20	52	3.4	6.3	23	31	70	6.3
3.5	15	20	52	3.5	6.4	23	31	70	6.4
3.6	15	20	52	3.6	6.5	23	31	70	6.5
3.7	15	20	52	3.7	6.8	25	34	70	6.8
3.8	17	22	55	3.8	7	25	34	70	7
3.9	17	22	55	3.9	7.5	25	34	70	7.5
4	17	22	55	4	7.8	27	37	79	7.8
4.1	17	22	55	4.1	8	27	37	79	8
4.2	17	22	55	4.2	8.5	27	37	79	8.5
4.3	18	24	58	4.3	9	29	40	80	9
4.4	18	24	58	4.4	9.5	29	40	80	9.5
4.5	18	24	58	4.5	10	31	43	89	10
4.6	18	24	58	4.6	10.2	31	43	89	10.2
4.7	18	24	58	4.7	10.5	31	43	89	10.5
4.8	20	26	62	4.8	11	33	47	95	11
4.9	20	26	62	4.9	11.5	33	47	95	11.5
5	20	26	62	5	12	35	51	102	12
5.1	20	26	62	5.1	12.5	35	51	102	12.5
5.2	20	26	62	5.2	13	35	51	102	13
5.3	20	26	62	5.3	14	37	54	107	14
5.4	21	28	66	5.4	15	38	56	107	15
5.5	21	28	66	5.5	16	38	56	107	16
5.6	21	28	66	5.6	18	40	58	107	18
5.7	21	28	66	5.7	20	42	66	131	20
5.8	21	28	66	5.8

Engineering Data

four-sided grinding
left hand cutting
web thinning DIN 1412 form A
30° RH helix

carbide drill bits engineering data

d1				d2	d1				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	29	33	61	3	5.6	49	57	93	5.6
3.1	32	36	65	3.1	5.7	49	57	93	5.7
3.2	32	36	65	3.2	5.8	49	57	93	5.8
3.3	32	36	65	3.3	5.9	49	57	93	5.9
3.4	34	39	70	3.4	6	49	57	93	6
3.5	34	39	70	3.5	6.1	55	63	101	6.1
3.6	34	39	70	3.6	6.2	55	63	101	6.2
3.7	34	39	65	3.7	6.3	55	63	101	6.3
3.8	37	43	65	3.8	6.4	55	63	101	6.4
3.9	37	43	65	3.9	6.5	55	63	101	6.5
4	37	43	75	4	6.8	60	69	107	6.8
4.1	37	43	75	4.1	7	60	69	107
4.2	37	43	75	4.2	7.5	60	69	107	7.5
4.3	41	47	80	4.3	8	64	75	117	8
4.4	41	47	80	4.4	8.5	64	75	117	8.5
4.5	41	47	80	4.5	9	69	81	125
4.6	41	47	80	4.6	9.5	69	81	125	9.5
4.7	41	47	80	4.7	10	74	87	133	10
4.8	45	52	86	4.8	10.2	74	87	133	10.2
4.9	45	52	86	4.9	10.5	74	87	133	10.5
5	45	52	86	5	11	80	94	142	11
5.1	45	52	86	5.1	11.5	80	94	142	11.5
5.2	45	52	86	5.2	12	85	101	151	12
5.3	45	52	86	5.3	13	85	101	151	13
5.4	49	57	93	5.4	14	91	108	160	14
5.5	49	57	93	5.5	15	96	114	163	15
					16	98	116	163	16

Engineering Data

special point grinding
web thickness reinforced
high abrasion resisstance
15° RH helix

carbide drill bits engineering data

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	9	16	46	3	7	30	45	80	8
3.3	9.9	18	48	4	7.3	30	45	80	8
3.5	10.5	20	50	4	7.5	30	45	80	8
4	12	22	52	4	8	35	50	98	8
4.2	15	25	65	6	8.5	35	50	98	10
4.4	15	28	68	6	8.8	42	57	105	10
4.5	15	28	68	6	9	42	57	105	10
5	18	32	72	6	9.3	42	57	105	10
5.3	18	32	72	6	9.5	42	57	105	10
5.5	18	35	75	6	10	45	63	107	10
6	18	35	75	6	10.5	45	63	107	12
6.5	25	40	80	6	10.8	45	63	107	12
6.8	30	45	80	8	11	50	71	119	12
7	30	45	80	8	11.5	50	71	119	12
					11.9	50	71	119	12
					12	50	71	119	12

Engineering Data

special point ground for fibre compound materials periphery cutting edge in sickle design
30° RH helix

carbide drill bits engineering data

d1				d2	d1				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	12	6	46	3	7	25	34	74	7
3.2	14	18	49	3.2	7.5	25	34	74	7.5
3	14	8	49	0.3	8	27	37	79	8
35	15	20	52	3.5	8.5	27	37	79	8.5
3.7	15	20	52	3.7	9	29	40	80	9
4	17	22	55	4	9.5	29	40	80	9.5
4.2	17	22	55	4.2	10	31	43	80	10
4.5	18	24	58	5	10.5	31	13	80	11
4.7	18	24	58	4.7	11	33	47	95	11
5	20	26	62	5	1.5	33	47	95	11.5
5.3	20	26	62	5.3	12	35	51	102	12
5.5	21	28	66	5.5	13	35	51	102	13
5.8	21	28	66	5.8	14	37	54	107	14
6	21	28	66	6	15	38	56	7	15
6.5	23	31	70	6.5	16	38	58	107	16

Engineering Data

four-sided grinding
web thinning standard
long design
30° RH helix

carbide drill bits engineering data

dl				d2	dl				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	29	33	61	3	9.5	70	81	125	9.5
3.5	35	39	70	3.5	10	75	87	133	10
4	38	43	75	4	10.2	75	87	133	10.2
4.5	42	47	80	4.5	10.5	75	87	133	10.5
5	46	52	80	5	10.8	81	94	142	10.8
5.5	50	57	93	5.5	11	81	94	142	11
6	50	57	93	6	].	81	94	142	11.5
6.5	55	63	1	6.5	12	85	1	51	12
7	60	69	107	7	13	85	101	51	13
7.5	60	69	107	7.5	14	91	108	160	14
8	65	75	117	8	15	96	114	163	15
8.5	65	75	117	8.5	16	1	116	163	16
9	70	81	125	9

Engineering Data

four-sided grinding
web thinning standard
30° RH helix

carbide drill bits engineering data

d1				d2	d1				d2
(h7)	L3	L2	L1	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
4	39	43	82	6	10	74	87	130	10
4.5	42	47	86	6	10.5	74	87	135	12
5	46	52	91	6	11	80	94	42	12
5.5	50	57	96	6	11.5	80	94	42	12
6	50	57	96	6	12	85	1	49	12
6.5	55	63	102	8	12.5	85	101	149	14
7	60	69	108	8	13	85	1	149	14
7.5	60	69	108	8	14	91	108	156	14
8	65	75	114	8	15	96	114	163	16
8.5	70	81	124	10	16	101	116	163	16
9	70	81	124	10
9.5	70	81	124	10

Engineering Data

four-sided grinding
web thinning standard
30° RH helix

carbide drill bits engineering data

dl				d2	dl				d2
(h7)	L3	L2	Ll	(h6)	(h7)	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
3	12	16	46	3	9	28	40	80	9
3.5	15	20	52	3.5	9.5	28	40	80	9.5
3.8	17	22	55	3.8	9	28	40	80	9.8
4	17	22	55	4	10	31	43	80	10
4.2	17	22	55	4.2	10.2	31	43	80	10.2
4.5	18	24	58	4.5	10.5	31	43	80	0.5
4.8	20	26	62	4.8	10.8	33	47	95	10.8
5	20	26	62	5	11	33	47	95	ll
5.5	21	28	66	5.5	11.5	33	47	95	1
5.8	21	28	66	5.8	12	35	51	102	12
6	21	28	66	6	2	35	51	102	2.5
6.5	23	31	70	6.5	13	35	51	102	13
6.8	25	34	74	6.8	14	37	54	7	14
7	25	34	74	7	15	38	56	107	15
7.5	25	34	74	7.5	16	38	58	107	6
8	27	37	79	8	18	40	62	123	18
8.5	27	37	79	8.5	20	42	66	131	20

Engineering Data

four-sided grinding
web thinning DIN 1412 form A
for machining of thread core holes
cutting till countersinking step

carbide drill bits engineering data

d1						d2	d1						d2
(h7)			L3	L2	L1	(h6)	(h7)			L3	L2	L3	(h6)
mm			mm	mm	mm	mm	mm			mm	mm	mm	mm
2.5	M3	GS	8.8	20	62	6	7.4	M8	GF	21	47	80	10
2.75	M3	GF	8.8	20	62	6	8.5	M10	GS	25.5	55	102	12
33	M4	GS	11.4	20	62	6	9.35	M10	GF	25.5	55	102	12
3.65	M4	GF	11.4	20	62	6	10.2	N12	GS	30	60	107	14
4.2	M5	GS	13.6	28	66	6	1.2	M112	GF	30	60	107	14
4.65	M5	GF	13.6	28	66	6	12	N14	GS	34.5	65	107	16
5	M6	GS	16.5	34	79	8	13.2	N14	GF	34.5	65	107	16
5.55	M6	GF	16.5	34	79	8	14	16	GS	38.5	73	123	18
6.8	M8	GS	21	47	80	10	15.1	l16	GF	38.5	73	123	18

Engineering Data

four-sided grinding
web thinning DIN 1412 form A
for machining of thread core holes
30° RH helix

carbide drill bits engineering data

d1					d2	dl					d2
(h8)	L4	L3	L2	L1	(h6)	(h8)	L4	L3	L2	L1	(h6)
mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
2.5	34	8.8	39	70	3.4	8.5	80	25.5	94	42	11
3.3	41	11.4	47	80	4.5	10.2	91	30	108	160	13.5
4.2	50	13.6	57	93	5.5	12	101	34.F	120	178	15.5
5	55	16.5	63	101	6.6	14	109	38.5	130	191	17.5
6.8	70	21	81	125	9	15.5	116	43.5	140	205	20

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Universal Carbide Drill Bit

Specifications of Universal Carbide Drill Bit

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