BORDO METRIC QUICK SILVER M2 HSS JOBBER DRILLS DIN338 118 ° Split Point (crankshaft point) Split point is self centering and reduces the need for end thrust. Friction at workpiece is reduced. 118 º point angles are ideal for use in materials such as mild steel and cast iron. The 118 º point creates easily controlled chips which are wide and thin. DRILL BIT SURFACE TREATMENT Bright Finish Jobber Drills have no surface treatment and are supplied in the as-ground condition. These tools are suitable for general purpose use, particularly for non-ferrous applications. Specifications:
- Spindle Speed Stainless Steel RPM: 450
- Spindle Speed Tool Steel RPM: 674
- Spindle Speed Cast Iron RPM: 899
- Spindle Speed Malleable Iron RPM: 1012
- Spindle Speed Med. Carbon Steel RPM: 1124
- Spindle Speed Free Cutting Steel RPM: 1611
- Spindle Speed Aluminium/Brass RPM: 2286
- Spindle Speed Wood/Plastic RPM: 3410
- Feed per revolution mm: 0.18
