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Bosch HSS-Cobalt Drill Bits

Application

These Bosch HSS-Cobalt drill bits have an extremely high resistance to heat and wear for drilling holes in stainless steel, alloyed and non-alloyed steel, cast steel, acid- and heat-resistant steels, and cast iron. Bosch recommend that these bits are used with their cutting oil.

What's the Difference Between HSS & HSS-Cobalt Drill Bits?

HSS drill bits have a high resistance to heat and wear, which makes them perfect for drilling in metal. HSS-Co drill bits are coated in cobalt which provides an even higher resistance to heat and wear for drilling in stainless steel.

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