4 Flutes Spiral Step Drill Bit
Features:
4 Flutes for better cutting
Faster and smooth cutting
Split point
CNB fully ground flute
Spiral flute
Hole is Laser marking on the tools
Material sheet:
| China |
European |
American |
Japanese |
HRC |
| HSS6542 |
HSS |
M2 |
SKH-51 |
63-65 |
| HSS Co5 |
HSS-E |
M35 |
SKH-55 |
64-66 |
Note: HSS Co5 is a development of HSS6542 and contains 5%cobalt which gives improved hardness, ware resistance and red hardness.
Specifications:
|
Order No.
|
Size
|
Steps
|
Shank Size
|
|
STDR-10401
|
4 - 12mm
|
5 step
|
6mm/6.5mm
|
|
STDR-10402
|
4 - 12mm
|
9 step
|
6mm/6.5mm
|
|
STDR-10403
|
4 - 20mm
|
9 step
|
8mm
|
|
STDR-10404
|
4 - 22mm
|
10 step
|
8mm
|
|
STDR-10405
|
4 - 30mm
|
14 step
|
10mm
|
|
STDR-10406
|
4 - 39mm
|
14 step
|
10mm
|
|
STDR-10407
|
5 - 35mm
|
13 step
|
13mm
|
|
STDR-10408
|
6 - 18mm
|
7 step
|
10mm
|
|
STDR-10409
|
6 - 20mm
|
8 step
|
10mm
|
|
STDR-10410
|
6 - 24mm
|
10 step
|
10mm
|
|
STDR-10411
|
6 - 32mm
|
8 step
|
10mm
|
|
STDR-10412
|
14 - 24mm
|
6 step
|
13mm
|
|
STDR-10413
|
14 - 25mm
|
7 step
|
13mm
|
|
STDR-10414
|
20 - 34mm
|
8 step
|
13mm
|
|
STDR-10415
|
10 - 20mm
|
11 step
|
10mm
|
|
STDR-10416
|
20 - 30mm
|
11 step
|
13mm
|
|
STDR-10417
|
5 - 28.3mm
|
10 step
|
10mm
|
|
STDR-10418
|
6 - 30mm
|
13 step
|
10mm
|
|
STDR-10419
|
6 - 38mm
|
12 step
|
10mm
|
|
STDR-10420
|
6 - 26.75mm
|
7 step
|
10mm
|
|
STDR-10421
|
6 - 39mm
|
12 step
|
10mm
|
|
STDR-10422
|
6 - 37mm
|
12 step
|
10mm
|
|
STDR-10423
|
6 - 32mm
|
9 step
|
10mm
|
|
STDR-10424
|
6 - 40mm
|
16 step
|
13mm
|
|
STDR-10425
|
4 - 32mm
|
15 step
|
10mm
|
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