Features HEAVY DUTY TEMPERED CARBON STEEL BODY - Heavy duty hardened carbon steel body with rebound free design, accumulation and heat resistant PTFE coating HEAT TREATED ALLOY BLADES High quality alloy blades are heat treated, sharper, more durable, precisely balanced and run smoothly Make bowls and trays: the round drill bit is very suitable for making small bowls, coin trays, jewelry boxes, boxes for fly fishing and more For CNC & Desktop Router The core box router bit is used for CNC and desktop routers, and can cut all composite materials such as plywood, hardwood and softwood With Storage Box:1/4 inch shank diameter with 5/8 inch blade depth, equipped with storage box, convenient for you to use, carry and store Specification: Item Type: Round Nose Bit Material: main body: carbon steel, bit: alloy Specification: Shank Diameter:1/4" Blade depth: 5/8 in. Package list: 1 x round nose bit. 1 x storage box or 3 x round nose bits. 3 x storage box Package List 1 x Round Nose Bit 1 x Storage Box