DIN1897 Short Type HSS Twist Drill Bits for Metal with Bright Finished
Description of DIN1897 SHORT HSS DRILL BITS:
1. Material:HSS 4241,4341,M35,M42;
2. Process:Rolled,Rolled and Polished,Fully ground
3. Surface:Surface:Ti-coated,Black Oxide,Bright finished,Amber finished,Grey finished,Rainbow
4. Point:118°/135°split point
5. Shank:Straight Shank.triangle shank,hex shank.
Short HSS drill bits Specification:
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 Short Type Drill Bits:
D |
L1 |
OAL |
D |
L1 |
OAL |
D |
L1 |
OAL |
D |
L1 |
OAL |
1 |
6 |
26 |
6 |
28 |
66 |
10.8 |
47 |
95 |
15.5 |
58 |
116 |
1.2 |
8 |
30 |
6.2 |
31 |
70 |
11 |
47 |
95 |
15.75 |
58 |
116 |
1.5 |
9 |
32 |
6.5 |
31 |
70 |
11.2 |
47 |
95 |
16 |
58 |
116 |
1.8 |
11 |
36 |
6.8 |
34 |
74 |
11.5 |
47 |
95 |
16.25 |
60 |
119 |
2 |
12 |
38 |
7 |
34 |
74 |
11.8 |
47 |
95 |
16.5 |
60 |
119 |
2.2 |
13 |
40 |
7.2 |
34 |
74 |
12 |
51 |
102 |
16.75 |
60 |
119 |
2.5 |
14 |
43 |
7.5 |
34 |
74 |
12.2 |
51 |
102 |
17 |
60 |
119 |
2.8 |
16 |
46 |
7.8 |
37 |
79 |
12.5 |
51 |
102 |
17.25 |
62 |
123 |
3 |
16 |
46 |
8 |
37 |
79 |
12.8 |
51 |
102 |
17.5 |
62 |
123 |
3.2 |
18 |
49 |
8.2 |
37 |
79 |
13 |
51 |
102 |
17.75 |
62 |
123 |
3.5 |
20 |
52 |
8.5 |
37 |
79 |
13.2 |
51 |
102 |
18 |
62 |
123 |
3.8 |
22 |
55 |
8.8 |
40 |
84 |
13.5 |
54 |
107 |
18.25 |
64 |
127 |
4 |
22 |
55 |
9 |
40 |
84 |
13.8 |
54 |
107 |
18.5 |
64 |
127 |
4.2 |
22 |
55 |
9.2 |
40 |
84 |
14 |
54 |
107 |
18.75 |
64 |
127 |
4.5 |
24 |
58 |
9.5 |
40 |
84 |
14.25 |
56 |
111 |
19 |
64 |
127 |
4.8 |
26 |
62 |
9.8 |
43 |
89 |
14.5 |
56 |
111 |
19.25 |
66 |
131 |
5 |
26 |
62 |
10 |
43 |
89 |
14.75 |
56 |
111 |
19.5 |
66 |
131 |
5.2 |
26 |
62 |
10.2 |
43 |
89 |
15 |
56 |
111 |
19.75 |
66 |
131 |
5.5 |
28 |
66 |
10.5 |
43 |
89 |
15.25 |
58 |
116 |
20 |
66 |
131 |
5.8 |
28 |
66 |
|
|
|
Application of Drill Bits for Metal:
Drillong holes on Iron,Metal,stainless steel sheet.
Package:
1. Normal Package:5/10 pcs in a plastic bag,then inner box and out carton.
2. Other package:Blister card,Plastic tube,PVC pouch,ac