功能

• For stainless steel, iron, wood, PVC pipe, drainage basin, etc. The cutting edge is high steel and the back is special spring steel bimetal structure.
• It is economical because Horseau and Arbor are replaced.
• Since there is no brim, it can be penetrated. (1) Drilling a hole in a soft object, such as wood, you can drill a clean hole by drilling from both sides after the pilot drill is completed.　② We recommend that you use cutting oil together with the replacement blade.　In the case of iron and stainless steel drilling, using cutting oil prevents heat and friction, resulting in clean drilling and long-lasting cutting edges.　③ Number of revolutions used by material When using with a drilling machine, select the speed according to the number of revolutions chart as much as possible.　When using an electric drill, we recommend a variable speed drill if possible, low speed for hard materials, low speed for large holes, and medium speed for soft materials.