... ,durable in use 3,dependable performance 4, complete in specifications hole saw1,M3/M42 High Speed Bi-metal Edge Welded to ... ,Cutting Safely and Efficiently,the Best Way to Cut Large Hole,Clearing the Chips in Touch Materials4,Cutting Depth to 1 ... ,Can be used in Portable Electric or Pneumatic Tools,Vertical Drill Machines, Lathe, Boring/Milling Machines and Other Machine Tools7,Cuts ...