Tungsten Carbide Drill Bit Manufacturer

Tungsten Carbide Drill Bit

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With a wide array of applications, tungsten carbide drill bits are used for drilling stainless steel, spring steel, cast iron, concrete and more.

Material: tungsten steel is highly rigid and wear resistant. Even under a temperature of 500℃, the rigidity and abrasive resistance will remain unchanged. Even if the temperature rises by another 500 degrees, the tungsten steel retains its hardness.

Specifications for hard alloy twist drill

External diameter mm	Overall length mm	Flute Length mm
0.5-0.7	30	6
0.8-0.9	30	8
1.0-1.1	30	10
1.2-1.4	35	12
1.5-1.7	35	16
1.8-1.9	40	16
2-2.4	40	18
2.5-3.0	40	20
3.1-3.9	50	25

Specifications for hard alloy center drill bits

External Diameter mm	Shank Diameter mm	Overall Length mm	Flute Length mm
3	3	46	12
4	4	55	17
5	5	62	20
6	6	66	21
7	7	74	25
8	8	79	27
9	9	84	29
10	10	89	31
11	11	95	33
12	12	102	35
13	13	102	35
14	14	107	37
15	15	111	38
17.5	17.5	123	40
19.5	19.5	131	42
20	20	131	42

size of 90°and 120°hard alloy pilot drill

External Diameter mm	Shank Diameter mm	Overall Length mm	Flute Length mm
2	2	50	8
3	3	50	12
4	4	50	13
5	5	50	16
6	6	60	22
8	8	70	24
10	10	80	24
12	12	80	28
14	14	100	30
16	16	100	32
20	20	100	38

size of internal cooling drill

External Diameter mm	Overall Length mm	Flute Length mm
5.1-6	60	30
6.1-7	60	32
7.1-8	70	32
8.1-9	70	38
10.1-11	70	38
11.1-12	70	38
12.1-13	80	40
13.1-14	80	40
14.1-16	80	40

size of hard alloy aluminum drill

External Diameter mm	Flute Length mm	Overall Length mm	Shank Diameter mm
3	16	50	3
3.5	20	50	4
4	22	50	4
4.5	24	65	6
5	26	70	6
5.5	28	70	6
6	28	70	6
6.5	31	75	8
7	34	80	8
7.5	34	80	8
8	37	80	8
8.5	37	90	10
9	40	90	10
9.5	40	90	10
10	43	95	10
11	47	100	12
12	51	110	12
13	51	110	14
15	76	140	16
17	84	150	18
20	94	160	20