parameter:

1.Bi-metal hole saws are constructed of hardened, heat and abrasion resisting high speed steel teeth with a tough alloy boby and cap.
2.For heavy duty cutting in wood, plastics,compoaite materials and any machinable metal(stainless steel,mild steel,cast iron,copper,brass,aluminum).
3. 4/6 variable tooth pitch with unique tooth profile for unparalleled sharpness,excellent durability and long life.
4.Fits standard and plug ejecting arbors.
5. Teeth material:M3