Pilot Drill Bits for Bi-Metal Hole Saw with Durability

1. M3/M42 edge bimetal high speed soldier welded to the back of the alloy steel for heavy-duty cutting.
2. 4/6 tooth variable
3. Cutting safely and efficiently, the best way to cut large holes, cleaning the Burr in the touch materials
4. cutting depth of 1-1/2 "(38 mm) to 1-7/8" (47 mm)
5. 9/16 "diameter - 8-17/64" (14-210 mm);
6. It can be used in portable electrical or pneumatic tools, machine tools vertical drill, lathe, milling and other machine tools;
7. cutting through stainless steel and other materials of pipes, wood embedded nail, hard wood floors, plywood and plastics
8. All specifications for tree hole saws are the same as the Hole saws.

1) We're a direct manufacturer and 100% export worldwide (USA, Israel, Jordan, Iran, Thailand, Duabai, South Africa, Kenya, Egypt, Australia, UK, Spain, Brazil, etc)
2) We have around 15 years of producing experience.
3) Our drill product: HSS drill bits, masonry drill, SDS drill, glass&tile drill, step drill, wood flat drill, wood auger bit, wood brad drill, center drill, left hand drill, drill set etc.
4) Above 95% of customers will place a formal order after testing the samples.