HSS Twist Drill Bit Roll-Forged & Polished

• Customization: Available
• Customized: Customized
• Standard: DIN, JIS, AISI, API, CE
• Model NO.: MZ
• Length: Normal
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling
• Transport Package: 19PCS X Drill Bits
• Specification: M14 5/8-11 6mm-130mm
• Trademark: MZ
• Origin: Qingdao, China
• HS Code: 8207509000
• Production Capacity: 5000000PCS/Month

Product Description

Product Description

HSS Twist Drill Bits Roll-forged & Polished
Economical high speed steel bit for general drilling.
Hot roll-forged flute with special heat treatment gives additional toughness with increased durability of the drill bit.
118 degree point angle design for general purpose, or 135 degree split point angle.
Polished flute for the most accurate hole dimensions and high concentricity.
For drilling in steel, cast steel, malleable iron, sintered metal, non-ferrous metal and plastic.
Drill Bits Set are available on request.

Metric Size are available ( DIN338 Standard ):
1.0mm ~ 13.0mm by 0.1mm
Set are available:
1.5 ~ 6.5mm x 13 PCS set
1.0 ~ 10mm x 19 PCS set
1.0 ~ 13mm x 25 PCS set

Inch Size are available ( ANSI B94.11M-1993 Standard ):
Fractional Size: 1/16" ~ 1/2"
Letter Size: A ~ Z
Wire Gage Size: 1# ~ 60#
Set are available:
1/16" ~ 1/4" x 13 PCS set
1/16" ~ 3/8" x 21 PCS set
1/16" ~ 1/2" x 29 PCS set
115 PCS set etc.

1. Material and Hardness of High Speed Steel:

DESCRIPTION OF HSS	C	W	Mo	Cr	V	Co	Si	Mn	P	S
	%	%	%	%	%	%	%	%	%	%
W2MoCr4V(F4341)	0.95-1.05	1.7-2.4	0.8-1.2	3.8-4.4	0.8-1.2		1.0-1.4	0.2-0.4	<=0.03	<=0.03
W4Mo3Cr4V(4341)	0.88-0.98	3.5-4.5	2.5-3.5	3.8-4.4	1.2-1.8		0.5-1.2	0.2-0.4	<=0.03	<=0.03
W9Mo3Cr4V(9341)	0.77-0.87	8.5-9.5	2.7-3.3	3.8-4.4	1.3-1.7	-	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W6Mo5Cr4V2(M2)	0.8-0.9	5.5-6.75	4.5-5.5	3.8-4.4	1.75-2.2	-	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W6Mo5Cr4V2Co5(M35)	0.9-0.95	5.5-6.5	4.5-5.5	3.8-4.4	1.75-2.2	4.5-5.5	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W2Mo9Cr4V2Co8(M42)	1.05-1.15	1.15-1.85	9.0-10.0	3.5-4.25	0.95-1.25	7.75-8.75	0.15-0.65	0.15-0.4	<=0.02	<=0.025

2.Size of HSS Drill Bits:

D(mm)	L2(mm)	L1(mm)	D(mm)	L2 (mm)	L1(mm)	D(mm)	L2 (mm)	L1(mm)	D(mm)	L2 (mm)	L1(mm)
0.2	2.5	19	1.95	24	49	6	57	93	11.2	94	142
0.22	2.5	19	2	24	49	6.1	63	101	11.3	94	142
0.25	3	19	2.05	24	49	6.2	63	101	11.4	94	142
0.28	3	19	2.1	24	49	6.3	63	101	11.5	94	142
0.3	3	19	2.15	27	53	6.4	63	101	11.6	94	142
0.32	4	19	2.2	27	53	6.5	63	101	11.7	94	142
0.35	4	19	2.25	27	53	6.6	63	101	11.8	94	142
0.38	4	19	2.3	27	53	6.7	63	101	11.9	101	151
0.4	5	20	2.35	27	53	6.8	69	109	12	101	151
0.42	5	20	2.4	30	57	6.9	69	109	12.1	101	151
0.45	5	20	2.45	30	57	7	69	109	12.2	101	151
0.48	5	20	2.5	30	57	7.1	69	109	12.3	101	151
0.5	6	22	2.55	30	57	7.2	69	109	12.4	101	151
0.52	6	22	2.6	30	57	7.3	69	109	12.5	101	151
0.55	7	24	2.65	30	57	7.4	69	109	12.6	101	151
0.58	7	24	2.7	33	61	7.5	69	109	12.7	101	151
0.6	7	24	2.75	33	61	7.6	75	117	12.85	101	151
0.62	8	26	2.8	33	61	7.7	75	117	12.9	101	151
0.65	8	26	2.85	33	61	7.8	75	117	13	101	151
0.68	9	28	2.9	33	61	7.9	75	117	13.1	101	151
0.7	9	28	2.95	33	61	8	75	117	13.2	101	151
0.72	9	28	3	33	61	8.1	75	117	13.3	108	160
0.75	9	28	3.1	36	65	8.2	75	117	13.4	108	160
0.78	10	30	3.2	36	65	8.3	75	117	13.5	108	160
0.8	10	30	3.3	36	65	8.4	75	117	13.6	108	160
0.82	10	30	3.4	39	70	8.5	75	117	13.7	108	160
0.85	10	30	3.5	39	70	8.6	81	125	13.8	108	160
0.88	11	32	3.6	39	70	8.7	81	125	13.9	108	160
0.9	11	32	3.7	39	70	880	81	125	14	108	160
0.92	11	32	3.8	43	75	8.9	81	125	14.25	114	169
0.95	11	32	3.9	43	75	9	81	125	14.5	114	169
0.98	12	34	4	43	75	9.1	81	125	14.75	114	169
1	12	34	4.1	43	75	9.2	81	125	15	114	169
1.05	12	34	4.2	43	75	9.3	81	125	15.25	120	178
1.1	14	36	4.3	47	80	9.4	81	125	15.5	120	178
1.15	14	36	4.4	47	80	9.5	81	125	15.75	120	178
1.2	16	38	4.5	47	80	9.6	87	133	16	120	178
1.25	16	38	4.6	47	80	9.7	87	133	16.25	125	184
1.3	16	38	4.7	47	80	9.8	87	133	16.5	125	184
1.35	18	40	4.8	52	86	9.9	87	133	16.75	125	184
1.4	18	40	4.9	52	86	10	87	133	17	125	184
1.45	18	40	5	52	86	10.2	87	133	17.25	130	191
1.5	18	40	5.1	52	86	10.3	87	133	17.5	130	191
1.55	20	43	5.2	52	86	10.4	87	133	17.75	130	191
1.6	20	43	5.3	52	86	10.5	87	133	18	130	191
1.65	20	43	5.4	57	93	10.6	87	133	18.5	135	198
1.7	20	43	5.5	57	93	10.7	94	142	18.75	135	198
1.75	22	46	5.6	57	93	10.8	94	142	19	135	198
1.8	22	46	5.7	57	93	10.9	94	142	19.25	140	205
1.85	22	46	5.8	57	93	11	94	142	19.5	140	205
1.9	22	46	5.9	57	93	11.1	94	142	19.75	140	205
									20	140	205