Stepped/twist drill bit assortment
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Stepped/twist drill bit assortment
Ruko stepped drill bit set 3 pieces HSS in sizes 0/9, 1, 2
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Variants
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The deep-ground grooves on stepped drill bits with 3 cutting edges ensure entirely chatter-free working. Due to the lower cutting edge load, a higher feed rate is possible, especially in soft materials such as non-ferrous metals. The taper facilitates retraction in drilled-through sheet metal.
Diameter 4.0-12.0 mm/4.0-20.0 mm/4.0-30.0 mm
Select RAL-colour code
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