Features: Using for hand making a drawer or other woodworking. Industrial quality router bits. Build-up and heat resistant teflon coating prevents build-up of sawdust, resin, and pitch. Solid Hardened Steel Bodies with Anti-Kickback Design for making finger joints easily. Adjust the bit height to work on different board thicknesses. Perfect woodwork cutter choice of professionals and hobbyists to make finger joints easily. Adjust the bit height to work on different board thicknesses. Specifications: Balance: +/- .003" tolerance Body: Solid Hardened Steel Blade: Industrial grade micro grain carbide Cutter: CNC ground to a 600 grit, mirror-like finish Material: Alloy blade, carbon steel handle Color: Yellow Size:1/2" shank;1-3/8" width;1-1/4" depth. Package includes: 1xFinger glue joint router bit Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you At the trepanning,please wear good protective measures,in case of wood chips splash damage eyes. ▶Please Note: Please choose 1/2-Inch Shank Version if you work on high hardness material. Please make sure your router speed start at 15000RMP when you use these series router bits to prevent the shank getting bent. You can speed up to 20000RMP if the material is not too hard.