Power tools of HSS M35 5%cobalt fully ground Drill bit set in DIN338 standard for metal drilling supplied by china manufacture.

Specifications HSS Straight shank drill bit

standard:DIN338

shank:straight

details:will be followed requirements.

process:fully ground

  1. INTRODUCTION Mostly Hss twist drill bit is used making holes. It is mainly divided into follows types according to application :   1. Hss drill bits are primarily for drilling in the following materials: Alloyed and Non alloyed Steel                               Soft Stainless Steel Soft Cast Iron    Aluminum Copper Brass and Bronze Plastics    2. Raw material : High speed steel HSS ( harder than steel blades; stay sharper longer.) HSS Cobalt: (Extremely hard and dissipate heat quickly. They are most commonly used                                                 for boring in stainless steel and other metals.)       

HSS GRADE	HRC	CHEMICAL COMPOSITION (% )					INTERNATIONAL
		C	W	MO	CR	V
W4Mo2Cr4VSi(4241)	60~62	0.9~1.0	1.5~2.5	0.5~1.2	3.8~6.0	0.5~1.0	4241
W4Mo3Cr4V(W4341)	62~65	0.88~0.98	3.5~4.5	2.5~3.5	3.8~4.4	1.3~1.7	4341
W9Mo3Cr4V(W9341)	63~66	0.77~0.87	8.5~9.5	2.7~3.3	3.8~4.4	1.3~1.7	9342
W6Mo5Cr4V2(M2)	63~66	0.8~0.9	5.5~6.75	4.5~5.5	3.8~4.4	1.75~2.2	M2
W6Mo5Cr4V2Co5(M35)	64~67	0.9~0.95	5.5~6.5	4.5~5.5	3.8~4.4	1.75~2.2	5% COBALT
W2Mo9Cr4V Co8 (M42)	66~68	1.05~1.15	1.15~1.85	9.0~10.0	3.8~4.25	0.95~1.35	8% CIBALT

  3. Processing : ROLL FORGED ROLLED & POLISHED / HALF GROUND FULLY GROUND MILLED
4. Suitable Standars: 

ROLL FORGED	1.DIN338,2.DIN340,3.JOBBER LENGTH
ROLLED &POLISHED (HALF GROUND)	1.DIN338,2.DIN340,3.1897,4.JOBBER LENGTH
FULLY GROUND	1.DIN338,2.DIN340,3.DIN1897,4.Aircraft Extension,5.Jobber Length, 6.Taper Length,7.Screw Machine Length
MILLED	1.DIN340,2.DIN1869,3.Aircraft Extension,4.Extra Length

    2. DETAILS INFORMATION: DIN338 twist drill bits Available in HSS-Co, HSS M2,HSS4341,HSS4241 Can supply different surface coating Can supply different shank

MATERIAL	HSS 4241, HSS 4341, HSS M2, HSS M35 (5%COBLAT)
PROCESS	Fully ground
POINT ANGLE	118 ~ 135 Degree or split point
SHANK	Straight, Tri-cut,Hex,Reduce,
SURFACE TREATMENT	Tin-coated, Nitride Oxide, Bright finish, Ambor coat,Black&White,Black&Gold
SIZE	1.0~20mm.

    3. TECHNOLOGY INFORMATION :     4. PACKAGING: 5 or 10 pcs packaged in pvc bag ,then into white inner box , then packaged in carton ,at last totally packaged into plant. (as photo)          →  Available in other kind of package and set .we also will follow your required brand (as photo)    →→→→→   Not all products are currently listed on our website. If you don't see the specific product you are looking for, please contact us for assistance .