Milwaukee Thunderweb HSS-G DIN338 Drill Bit 1mm x 34mm Pack of 10 4932352377

1.0mm diameter and 12mm working length. Metal drill bits HSS Ground - DIN 338. The THUNDERWEB design is characterised by a conical shaped web which gets thicker towards the back of the drill bit. The web is the internal core of the drill bit. Parabolic web cross section Large web thickness. Strength built in. Accepts higher feed pressure and torque. Less breakages. Good for drilling deep holes and on curved surfaces. Long life. Flute Geometry THUNDERWEB flute form ejects hot chips rapidly. Dissepates heat better increasing lifetime. Open flute form reduces drill drawback when drilling deeper holes. Sharpened edges reduce binding for faster cleaner cuts. Flatter twist angle creates smaller chippings, ideal for drilling harder steels ie: stainless steel. 135° Split Point Precision starting, drill won't walk. Penetrates quickly. Good for drilling on curved surfaces. Requires less effort / feed pressure. Excellent for very hard materials. Polished finish reduces friction and extends drill bit life. Supplied in impact resistant ABS case with added rubber corner protection. THUNDERWEB HSS-G DIN 338 Application guide Non-alloyed construction steel, non alloyed case hardened steel (< 400 N/mm² or < HRB 69) : Most suitable Non-alloyed construction steel, non alloyed case hardened steel (400-800 N/mm² or < HRC 21) : Most suitable Sheet steel (< 800 N/mm² or < HRC 21) : Most suitable Non-alloyed tool steel (< 800 N/mm² or < HRC 21) : Most suitable Alloyed tool steel (< 800 N/mm² or < HRC 21) : Most suitable Alloyed tool steel (> 800 N/mm² or > HRC 21) : Most suitable Alloyed hardened & tempered steel (< 1200 N/mm² or < HRC 37) : Not suitable Alloyed hardened & tempered steel (> 1200 N/mm² or > HRC 38) : Not suitable Stainless steel (< 1000 N/mm² or < HRC 30) : Suitable Stainless steel (1000-1200 N/mm² or < HRC 30-37) : Not suitable Malleable cast iron (750 N/mm² or HRB 99) : Most suitable Soft cast iron (450 N/mm² or HRB 75) : Most suitable Hard cast iron (700 N/mm² or HRB 96) : Most suitable Aluminium (< 350 N/mm² or < HRC 59) : Suitable Copper : Suitable Bronze : Most suitable Brass : Most suitable Magnesium : Not suitable Plastics (PVC, polyamide, thermoplastics) : Most suitable Wood : Most suitable