Item Type: Chamfering End Mill Material: HSS4241 Surface Treatment: Titanize Product Use: Drilling into Wood, Metals, Rubber, Plastic, and More. Maximum Cutting Range: Approx. 20.5mm / 0.8in16.5mm / 0.64in12.4mm / 0.48in10.4mm / 0.4in8.3mm / 0.32in6.3mm / 0.24in Package List 8 x Chamfering End Mill Use in appropriate item size 1This chamfering end mill is made from quality titanize material, which is more sturdy and durable for long service life. 2Installation or disassembly is not easy to get stuck, it is more convenient to use, and not easy to slip in use. 3These chamfering end mill are rustproof and corrosionresistant, with exquisite and beautiful design. 4Countersink drill bits with accuracyground 90degree tips for drilling into wood, metals, rubber, plastic, and more. 5Great for sinking 90 degree holes into wood and metals countersunk screws and fixings. Suitable for DIY, home and general building engineering using.