Hss M35 Cobalt Steel Step Cone Drill Bit Hole Saw Cutter 4-12/20/32Mm 5-21/27Mm

Hss M35 Cobalt Steel Step Cone Drill Bit Hole Saw Cutter 4-12/20/32Mm 5-21/27Mm

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Description:

4-12 mm (4, 5, 6, 7, 8, 9, 10,11,12mm)

4-20 mm (4, 6, 8, 10, 12, 14, 16, 18, 20mm)

5-21 mm (5, 7, 9, 11, 13, 15, 17, 19, 21mm)

5-27 mm (5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27mm)

4-32 mm (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)

Main Functions Of Product:

M35 cobalt step drill (HSS Co) is a high hardness step drill bit that is mainly applied for drilling high hardness steel, such as, the stainless steel plane and hardened steel. M35 step drill bit can be utilized to drill holes in the stainless steel plane.

The following points that you need to pay attention to:

You can use the hand drill and bench drill to drill holes in the stainless steel plane. Use the hand drill for the board whose thickness is within 1 mm/0.04 in, while use thebench drill for the board whose thickness is about 2-3 mm/0.08-0.12 in;

The drilling speed can't be too fast on the stainless steel plate. Hundred rpm is enough.

Please add the water or cutting fluid to cool down during the processing so as to extend the service life of the drill bits.

Notes:

1. Please allow slight chromatic aberration in the photo

2. Due to manual measurement, the size may be deviated