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10 Piece 5.7mm ThunderWeb HSS-Ground (DIN338) Metal Drill Bit Pack

code
4932459856
£12.70 £10.58
3 - 7 Days
Miwaukee accessory code number : 4932459856
Genuine Milwaukee accessories.

Pack of 10 drill bits.
EXTREME DURABILITY & LONG LIFE.

  • 5.7mm diameter and 57mm 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
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    Diameter : 5.7 mm
    Pack quantity : 10
    Total length : 93 mm
    Working length : 57 mm