Hole Saw,HSS Bi-Metal Hole Cutter with Arbor Mandrel for Cutting Steel,Aluminium,Brass,Copper,Zinc,Tin,Wood

The 3-3/4 inch hole saw,diameter is 3.75”,cutting depth is 1.26” For cutting steel,aluminium,brass,copper,zinc,tin,wood,plasterboard and plastics The material of hole saw is HSS M-42 bi-metal,the M-42 cobalt bi-metal construction,longer life,shaper,longer lasting teeth. High speed cutting edge provides shock resistant teeth,improved cutting performance,for faster and smoother cuts. The slot design for fast,easy plug ejection. CAUTION: Cutting tool may break or shatter under improper use. Government regulations requires the use of safety glasses and other appropriate safety gear at all times in the area of use 3 3/4 Inch Hole Saw: 1. M-42 Cobalt Bi-metal construction,longer life. 2. Creates sharper,longer lasting teeth, can cut thin stainless steel,mid steel sheet,and wood,plastic,plywood. and also steel tube. 3. Hole saw diameter is 3-3/4 inch,the cutting depth is 1.26″ (32mm) 4. Operating skills: when drilling,it is better first in low speed, then higher speed.