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HSS STRAIGHT SHANK JOBBER DRILL 0.78MM product photo
2243767
SHR0250031D
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Short DescriptionHSS STRAIGHT SHANK JOBBER DRILL 0.78MM
Long DescriptionSeries J100 - Metric. General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. This is the most common surface finish and is the result of a steam tempering operation in which steam is passed over the product during a controlled tempering cycle, producing a black oxide layer. Black tools are generally recommended for ferrous applications where the oxide layer aids chip flow, helps to dissipate heat by retaining some coolant on the tool surface and also helps to prevent the tool from staining.
Brand/Manufacturer NameSHERWOOD
Manufacturing Part NumberSHR0250031D
Technical Attributes