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Twist drill bit assortment HSS DIN 1897 type RN, 19 pieces
The extra-short, steel precision drill bit for general, broad applications in steel up to 850 N/mm² and in cast iron.
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20 % lower infeed force compared to conventional drill bits as well as quicker progress and a more gentle way of working
Optimised cross web thinning
Precise spot drilling without centring, even on curved surfaces
Optimised split tip
Ideal for core drill holes
Very precise tip grinding for precise boreholes
Excellent adhesive properties of cooling lubricants and a reduced tendency towards the build up of material deposits
Vaporised surface
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