
Material: Carbon steel material, quenching, high hardness, good abrasion resistance and durability. 7 Size: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, the chamfer diameter is 15.8mm, L-shaped wrench, and can meet all your needs. Easy to use: Simply loosen and tighten the fixing screws to adjust the drilling length for screws of different lengths. Suitable for wood and plastic. Sleeve depth adjustable with a wrench. Scope of application: Woodworking countersink drill bits are widely used in plastic flooring, PVC, rubber, parquet, hard wood (hardness below 25 degrees) or parquet. Quality service: If you have any concerns about this product, you can contact us by email and we will reply to you within 24 hours. Material: Carbon steel material. Deterrence, high hardness, good abrasion resistance and durability. 7 Size: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, the chamfer diameter is 15.8mm, L-shaped wrench and can meet all your requirements. Easy to use: Simply loosen and tighten the fixing screws to