Bordo 9.5mm HSS Cobalt Jobber Drill - Carded
$31.20

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.

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

Part No. 2011-9.50S
Reference No. D1080095
Barcode 9326518036081
Diameter (mm) 9.5
Flute Length (mm) 81
Overall Length (mm) 125
Pack Quantity 1
Spindle Speed Stainless Steel RPM 483
Spindle Speed Tool Steel RPM 724
Spindle Speed Cast Iron RPM 966
Spindle Speed Malleable Iron RPM 1086
Spindle Speed Med. Carbon Steel RPM 1207
Spindle Speed Free Cutting Steel RPM 1730
Spindle Speed Aluminium/Brass RPM 2454
Spindle Speed Wood/Plastic RPM 3661
Feed per revolution mm 0.25