Sell Step drills

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sell as follows step drills:

1. DIN HSS Spiral/Straight Step Drills
2. ANSI HSS Spiral/Straight Step Drills
3. other standards

Shank:
1. Round shank;
2. Hex shank;
3. Three flat shank
4. other

Surface:
1. White Finish
2. Black Finish
3. Sanded Finish
4. Titanium Coated
5. Cobalt Coated

packing:
1. SET:in metal case of one
in wooden case of one

2. in plastic tubes of one

drilling range:



4 - 12mm x 5 step
4 - 12mm x 9 step
4 - 20mm x 9 step
4 - 22mm x 10 step
4 - 30mm x 14 step
4 - 39mm x 14 step
5 - 35mm x 13 step
6 - 18mm x 7 step
6 - 20mm x 8 step
6 - 24mm x 10 step
6 - 30mm x 13 step
6 - 32mm x 8 step
6 - 38mm x 8 step
14 - 24mm x 6 step
14 - 25mm x 7 step
20 - 34mm x 8 step
10 - 20mm x 11 step
20 - 30mm x 11 step.