9 PCS Bi-metal Hole Saw Drill Bit Set 19mm-51mm High Speed Steel Multifunction Hole Drilling Drill Bits with Hex Shank for Wood Plastic Plasterboard Aluminum Iron Metal Sheet

Features:
High speed steel material, with high hardness and good durability.
Mainly used for wood board, thin metal sheet, plastic board, plasterboard, PVC tube, etc.
9 sizes meet various needs: 19/ 22/ 25/ 28/ 30/ 35/ 38/ 44/ 51mm.
Perfect accessory, compatible with bench drill, electric hand drill and cordless electric drill.
Multifunction and practical tool for home decoration, DIY projects, etc. Small size, easy to carry.
Note:
1. Secure the material that needs drilling, keep the drill bit perpendicular to the material.
2. The power of electric hand drill should be over 750W. Don't use impact drill.
3. Cordless electric drill is only suitable for plastic, wood, plasterboard, etc.
4. Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding.