shrunk shank hss twist drill bit

shrunk shank hss twist drill bit *4241,4341,9341,6541,M32 and M42 *ISO 9001 standard *plastic sleeve packing *we are factory

  shrunk shank hss twist drill bit 

1.Material:4241,4341,9341,6541,M32 and M422.Fully ground,roll forged and edge forged twist drill

3.Special tip and more sharpness4.Application:More than 5MM stainless steel, spring steel, special steel, hardness of HRC40 within the metal block, opened die punch ect.

Number	SIZE(mm)	Number	SIZE(mm)
1	13	35	24.5
2	13.5	36	25
3	14	37	25.5
4	14.25	38	26
5	14.75	39	26.5
6	15	40	27
7	15.25	41	27.5
8	15.5	42	28
9	15.75	43	28.5
10	16	44	29
11	16.25	45	29.5
12	16.5	46	30
13	16.75	47	30.5
14	17	48	31
15	17.25	49	31.5
16	17.5	50	32
17	17.75	51	32.5
18	18	52	33
19	18.25	53	33.5
20	18.5	54	34
21	18.75	55	34.5
22	19	56	35
23	19.25	57	35.5
24	19.5	58	36
25	19.75	59	36.5
26	20	60	37
27	20.5	61	37.5
28	21	62	38
29	21.5	63	38.5
30	22	64	39
31	22.5	65	39.5
32	23	66	40
33	23.5	67	41
34	24	68	42
		69	43

shrunk shank hss twist drill bit