1/2″ Carded Bright HSS Jobber Drill Bit 2Pce Clam 2006-1/2S 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: 301
- Spindle Speed Tool Steel RPM: 451
- Spindle Speed Cast Iron RPM: 602
- Spindle Speed Malleable Iron RPM: 677
- Spindle Speed Med. Carbon Steel RPM: 752
- Spindle Speed Free Cutting Steel RPM: 1078
- Spindle Speed Aluminium/Brass RPM: 1530
- Spindle Speed Wood/Plastic RPM: 2282
- Feed per revolution mm: 0.25
