11.5mm Bright HSS Jobber Drill Bit 2007-11.50S by Bordo
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: 332
- Spindle Speed Tool Steel RPM: 499
- Spindle Speed Cast Iron RPM: 665
- Spindle Speed Malleable Iron RPM: 748
- Spindle Speed Med. Carbon Steel RPM: 831
- Spindle Speed Free Cutting Steel RPM: 1191
- Spindle Speed Aluminium/Brass RPM: 1689
- Spindle Speed Wood/Plastic RPM: 2520
- Feed per revolution mm: 0.23
