HSS M2 1~10mm Metric/Inch Center Drill Bit

Product Overview

Description

HSS M2 1~10mm Metric/Inch Center Drill Bit 

 

A type ( plain )

 

Flute Dia.	Body Dia.	Overall Length	Flute Length
			Max.	Min.
0.50	3.15	31.5	1.0	0.8
0.63			1.2	0.9
0.80			1.5	1.1
1.00			1.9	1.3
1.25			2.2	1.6
1.60	4.00	35.5	2.8	2.0
2.00	5.00	40.0	3.3	2.5
2.50	6.30	45.0	4.1	3.1
3.15	8.00	50.0	4.9	3.9
4.00	10.00	56.0	6.2	5.0
5.00	12.50	63.0	7.5	6.3
6.30	16.00	71.0	9.2	8.0
8.00	20.00	80.0	11.5	10.0
10.00	25.00	100.0	14.2	12.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B type (with bell )

 

 

 

Drill series : center drill , countersink drill , shell core drill and twist drill 

 

 

Material Introduction:

 

A. W6Mo5Cr4V2 (GB)  M2( ASTM), S6-5-2(DIN), SKH51(JIS)
   chemical composition:C 0.85, Si 0.38, Mn 0.35, P≤0.030, S≤0.030,  Cr 4.10, W 6.00, Mo 4.80 V 1.85
   main application:It is widely used for making all kinds of cutters and durability cold-work die

 

B. W6Mo5Cr4V2Co5 (GB), M35( ASTM), 1.3243(DIN), SKH55(JIS)
   chemical composition: C 0.93, Si 0.38, Mn 0.35, P≤0.030, S≤0.030, Cr 4.10, W 6.30, Mo 4.80 V 1.85, Co 5.00
   main application:It is often used for making blades with  high-speed and great cutting difficulty as it’s good abrasive resistance

 

 

W6Mo5Cr4V2(M2),W9Mo3Cr4V(W9),W18Cr4V(W18),W6Mo5Cr4V2Al(M2Al),W6Mo5Cr4V2Co5(M35),W2Mo9Cr4VCo8(M42),W4Mo3Cr4VSi(4341),W4Mo2Cr4VSi(4241)