High Speed Steel Single-End Countersink Metal Deburring Drill Bit Set<br> Scientific Design: Spiral flute cutters help to evacuate chips upwards, reducing clogging.<br> Main functions: Countersunk head deburring drills can be used for deburring cross holes, deep holes, straight edges and curved edges. Suitable for MDF, plywood, acrylic, PVC board, plastic and soft metal.<br> Countersunk Head Deburring Set: High Speed Steel Titanium Coated Countersunk Head Deburring Set, including 4 popular sizes: 2-5mm, 5-10mm, 10-15mm, 15-20mm head diameter.<br> Drill Bit Set: Four sizes of drill bits to meet daily industrial tool replacement needs.<br> Rugged and Durable: Rust-resistant, durable bits cut smoothly without chattering and fluted edges.<br> Color: Multicolor<br> Size: 2-5 (holes in the range of 2MM--5MM inverted, shank 6MM, head diameter 9.7MM), 5-10 (holes in the range of inverted 5--10MM, shank 8MM, head diameter 14MM), 10-15 (inverted 10MM--15MM range of holes, shank 10MM, head diameter 21MM), 15-20 (reverse 15MM--20MM range of holes, shank 12MM, head diameter 28MM)<br> Quantity: 4pcs<br> 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering.<br> 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding.<br> 3. Only the above package contents, excluding other products.<br>