C3 tungsten carbide blades, high quality alloy steel body with antikickback design;(Please receive the coupon code on the product page when purchasing to get a more favorable price.)Includes 6 sizes of 3 finned, 8mm shank and 22mm(78" bearing);6 slot cutter sizes: 1.8mm, 2.5mm , 3mm, 4mm, 5mm, 6.35mm (116", 332", 18", 532", 316" and 14"); Cutting depth: 12.7mm(12"); Overall Length: 70mm(278");You can use the cookie cutter, screed, and stick to create panel slots in stile and rail cabinet doors.Important: Cutters should be used one at a time. Stacking knives without staggering blades and adequate support between bodies can bend and warp bodies when tightening.Features:6bit 3wing countersink bit groover with 8mm shank6 in the following sizes: 1.8mm,2.3mm,3mm,4mm,5mm,6.35mm(116", 332", 18", 532", 316" and 14")< p>C3 Carbide for long life and professional cut quality.Fully heattreated body and barrel for increased durability.Buildup resistant coating and antiscratch design. recoil.You can use the cookie cutter, screed, and stick to create panel slots in stile and rail cabinet doors.Specifications:< p>Stem size: 8mmNumber of cutters: 6Sizes of: 1.8mm,2.3mm,3mm,4mm,5mm,6.35mm(116", 332", 18", 532", 316" and 14")< p>Depth of cut: 12.7mm(12")Cutting diameter: 47mm(178")Overall length: 70mm(278")Bearing Outer Diameter: 22mm(78")Material: Carbide TippedImportant Notice:Knives should be used one at a time.Stacking knives without staggering the blades and adequate support between the bodies can bend and warp the bodies when tightening.Please take protective measures to prevent splashing of wood chips to hurt your skin and eyes.Contents:3Wing Groove BitsNote: the data is a Manual measurements, please allow 13cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.