Products » Masonry and HSS drills

HSS-DIN 338 twist drill bit

Professional use up to 800N/m2 for metal
HSS-DIN 338
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SUPPORT MATERIALS

vorpa en p419426-hss-din-338-twist-drill-bit 011
Special alloys-stainless steel-metal
vorpa en p419426-hss-din-338-twist-drill-bit 012 = Suitable application vorpa en p419426-hss-din-338-twist-drill-bit 013 = after checking the consistency of the base material

Certifications

vorpa en p419426-hss-din-338-twist-drill-bit 014
vorpa en p419426-hss-din-338-twist-drill-bit 015

Benefits:
  • High elasticity due to heat forming
  • Robust core thickness and distinct hardness 
  • Special surface treatment reducing dust deposition
  • Reduced danger of breakage thanks to the torsional strength
  • Particularly suitable for professional use in metal, alloyed and unalloyed steel with a tensile strength up to 800 N/mm2,non-iron metal, cast iron and hard plastic​

Suitable for:
  • Metal
  • Cast iron
  • Brass
 
Suggestions for use:
  • In case of horizontal drilling and drilling depths 5 times bigger than diameter it is necessary to reduce the drilling speed of 20-40%
  • Use special drilling oils in case of extremely hard alloy and heat resistant materials
  • Use normal freezing mixtures for standard steel or low adhesiveness materials
  • Dry-drilling in case of short chips, brass and cast iron
  • Lift the drill bit for time to time in order that the oil can penetrate into the material
  • Sharpen the cutting edges regularly
  • Do not use drill bits with rotopercussion

HSS-DIN 338 twist drill bit

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Professional use above 800N/m2 for metal
Professional use up to 900N/m2 for metal