HSS M3 Bi-metal saw cutter, M42 hole saws

  *M3/M42 hign speed steel hole saws are rugged for cutting tools designed to cut accurate holes

 in machinable materials up t038mm/44mm thick

  *Ranging in size from 14mm to 300mm in diameter

  *they can use in portable electric,air tools,drill presses.lathes,boring mills,milling machines or any  other machine which has a rotating splindle.

  *Hole saws have 4/6 vari-pitch tooth design and are recommended for cutting steel and cast iron  pipe,steel plates,pper,brass,stainless steel,wood and plasrics.

  *The knife edge and main-body adopt bimetalic article made of hign speed steel and spring steel

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