Description
Description
Bordo 2011-M6 HSS Cobalt Jobber Drill Set
About Metric Cobalt Tough HSS-Co5 Jobber Drill DIN338
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.
About 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.
Contents
Description Quantity
1mm HSS Cobalt Jobber Drill 1
1.5mm HSS Cobalt Jobber Drill 1
2mm HSS Cobalt Jobber Drill 1
2.5mm HSS Cobalt Jobber Drill 1
3mm HSS Cobalt Jobber Drill 1
3.5mm HSS Cobalt Jobber Drill 1
4mm HSS Cobalt Jobber Drill 1
4.5mm HSS Cobalt Jobber Drill 1
5mm HSS Cobalt Jobber Drill 1
5.5mm HSS Cobalt Jobber Drill 1
6mm HSS Cobalt Jobber Drill 1
6.5mm HSS Cobalt Jobber Drill 1
7mm HSS Cobalt Jobber Drill 1
7.5mm HSS Cobalt Jobber Drill 1
8mm HSS Cobalt Jobber Drill 1
8.5mm HSS Cobalt Jobber Drill 1
9mm HSS Cobalt Jobber Drill 1
9.5mm HSS Cobalt Jobber Drill 1
10mm HSS Cobalt Jobber Drill 1
11mm HSS Cobalt Jobber Drill 1
12mm HSS Cobalt Jobber Drill 1
13mm HSS Cobalt Jobber Drill 1
