Screwing, Drilling Accessories -4pcs HSS Chamfer Bits Deburring Tool Natural Wood Cutting Tool Highlights Generic Brand 4pcs HSS Chamfering Bits Deburring Tool Natural Wood Cutting Tool Description: Made of high speed steel, robust and durable. 4 types to meet your different needs: 9.7mm (14.38 inch), 14mm (0.55 inch), 21mm (0.83 inch), 28mm (1.10 inch) (top diameter of milling). Ideal for making countersunk holes, daily DIY use, easy to operate and drill efficiently without burrs. Used for workpiece circular opening chamfering or taper hole, the edges on the surface of chamfering processing. Suitable for processing metal and some non-metal materials, such as PVC board, aluminum, plastic, iron. Specification: Material: HSS High Speed Steel Angled Hole Chamfer: 2-5, 5-10, 10-15,15-20 2-5: Suitable for 2mm-5mm (0.07inch-0.20inch) Hole ) 6 mm (0.24 inch), 9.7 mm (0.38 inch) diameter handle 5-10: Suitable for holes in the range of 5 mm-10 mm (0.20 inch-0.39 inch) 8MM (0.31 inch) handle, 14mm (0.55 inch) diameter 10-15: Fits 10mm to 15mm (0.39 inch to 0.59 inch) hole, 10mm handle (0.39 inch), 21 mm (0.83 inch) top diameter 15-20: Suitable for holes from 15 mm to 20 mm (0.59 inch to 0.79 inch) 12 mm (0.47 inch ), handle 28 mm (1.10 inch) in top diameter Package includes: 4 pcs countersink drill bits