Hole saw 6 inch for Soft Wood, Drywall, PVC, Plywood metal 15-100mm

Description:
Product Name: Metal Hole Saw
Material:Alloy Steel Shanks
Size:80mm
Cutting Diameter:31~100mm
Suitable for cutting material:Aluminum Doors & Windows Water Pump Drilling machines Sainless steel plate steel castings, aluminum alloy and other metal plate.
Precautions:
1. Knife material must be fixed well, can not move, with the hole to a 90 degree angle;
2. Just started drilling slowly contact with the material being drilled, can not impact the workpiece, at the same time for low speed (the larger the lower the speed of the hole opener).
3. Do not be too hard up and down the screw, so as not to screw the screw.
4. If there is a condition, you can add coolant, when it is about to drill through, pay attention to slow down into the speed, if abnormal or when poor chip removal, please stop working, the iron work clean up.