Bordo 11.0mm HSS Cobalt Jobber Drill - Carded

135° Split Point (crankshaft point)
Split point is self centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust. The 135º point should be used to cut harder steel materials especially in deep hole applications. In these situations it will produce thicker chips minimising work hardening of the cavity. Faster penetration reduces abrasion and friction along the cutting edges. Cobalt HSS jobber drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.

Bronze Finish (gold oxide). The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.

Part No. 2011-11.00S
Reference No. D1080110
Barcode 9326518036111
Diameter (mm) 11
Flute Length (mm) 94
Overall Length (mm) 142
Pack Quantity 1
Spindle Speed Stainless Steel RPM 417
Spindle Speed Tool Steel RPM 625
Spindle Speed Cast Iron RPM 834
Spindle Speed Malleable Iron RPM 938
Spindle Speed Med. Carbon Steel RPM 1042
Spindle Speed Free Cutting Steel RPM 1494
Spindle Speed Aluminium/Brass RPM 2119
Spindle Speed Wood/Plastic RPM 3162
Feed per revolution mm 0.28