Bordo 3.0mm HSS Cobalt Jobber Drill - Carded 2pk

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. 2011-3.00S
Reference No. D1080030
Barcode 9326518035954
Diameter (mm) 3
Flute Length (mm) 33
Overall Length (mm) 61
Pack Quantity 2
Spindle Speed Stainless Steel RPM 1529
Spindle Speed Tool Steel RPM 2293
Spindle Speed Cast Iron RPM 3058
Spindle Speed Malleable Iron RPM 3440
Spindle Speed Med. Carbon Steel RPM 3822
Spindle Speed Free Cutting Steel RPM 5478
Spindle Speed Aluminium/Brass RPM 7771
Spindle Speed Wood/Plastic RPM 11593
Feed per revolution mm 0.1