HSS-E extra short spiral drill with cylindrical shaft DIN 1897 N 135° bronze 2.5xD for alloyed steel <1620 N/mm². Stainless steel. Ductile cast iron <1000 N/mm². Titanium and nickel alloys <1200 N/mm ² and metal ceramics <550 HB.

Applications

• alloy steel hardened and tempered steel (>250<350 HB >850<1200 N/mm²)
• alloy steel hardened and tempered steel (> 350 HB >1200<1620 N/mm²)
• stainless machining steel (<250 HB <850 N/mm²)
• stainless steel - austenitic (<320 HB <1100 N/mm²)
• stainless steel - Ferritic + Austenitic Martensitic (<300 HB <1000 N/mm²)
• Ductile cast iron/malleable cast iron (>200<300 HB >700<1000 N/mm²)
• Titanium non-alloyed (<200 HB <700 N/mm²)
• Titanium alloyed (<270 HB <900 N/mm²)
• Titanium alloy (>270<350 HB >900<1250 N/mm²)
• nickel non-alloyed (<200 HB <700 N/mm²)
• nickel alloy (<270 HB >900 N/mm²)
• nickel non-alloyed (<200 HB <700 N/mm²)
• Cermets (<550 HB <170 N/mm²)

Technical specifications

Attributes

Drilling diameter	5.5 mm
Total length	66 mm
Length of cut	28 mm
Din standard	DIN 1897
Ratio of diameter to length of drill hole	2,5xD
Body material	HSS-E
Tip angle	135 °
Internal cooling	No
Tail diameter	5.5 mm

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