1) Products: HSS Bi-metal Hole Saw
materials: M3, M42 veriable 4/6 TPI teeth
diameter: 14-210mm (9/16"-8-17/64")
Cutting depth: 1-1/2" (38mm), 1-7/8" (47mm)

it can be used in portable electric or pneumatic tools, vertical drill machines, lathe, boring/milling machines and other machine tools
cuts through stainless steel and other materials pipe, nail-embedded wood, hard wood floors plywood and plastics

2)some pitures of bi-metal hole saws with different kinds colors

Dark blue color of bi-metal hole saw


red color of bi-metal hole saw


blue color of bi-metal hole saw


white color of bi-metal hole saw


Also other colors of HSS bi-metal holes saws are available,
pls kindly contact us for further information