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BORDO Cobalt HSS-Co5 Jobber Drill Metric Set
Bordo Metric Cobalt Tough HSS-Co5 Twist Drills.
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 135° 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 Twist drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.
Bordo Ship Augers are single twist bits, easily recognised by their lack of a central core.
The ship head features a single cutter with a coarse screw.
Their open pattern allows for the efficient evacuation of shavings and makes them ideal for deep hole applications.
The absence of cutting spurs (or lips) makes them less susceptible to deviation due to grain and imperfections making them the preferred option for timber with a strong grain.
Hardened cutting edge for long life in hard timber, including nail-embedded wood.
Ideal for deep hole applications.
Fully-forged bit for maximum durability.
Resharpenable.
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