ITEM NAME:Titanium Coated HSS Countersink Deburring Drill Bit For Metal Steel Plastic Wood Descriptio n Details Features: - 100% quality and Brand new. - A brand-new, unused, unopened, undamaged item - Countersink and Debarring Tool Set - This 4 piece Countersink and Deburring Tool Set is ideal for cutting through metal, wood and plastic quickly and easily - This is hands down, the best countersink I have never used Specification: Color: As picture shown Material: High speed steel 4241(Titanium) Size(four type): 2-5mm,5-10mm, 10-15 mm, 15-20mm 2-5mm length: 4.5cm 5-10mm length: 5cm 10-15mm length: 6.5cm 15-20mm length: 8.5cm Note: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color ,Please allow 1-2cm differs due to manual measurement Package Included: 4 x Countersink and Deburring Tool We offer you what you need! 4Pcs HSS Titanium Coated Countersink Deburring Tool Wood Metal Drill Bit Set.4 x Countersink and Deburring Tool. - Countersink and Debarring Tool Set. - This is hands down, the best countersink I have never used. Material: High speed steel 4241(Titanium). We'd like to settle any problem in a friendly manner.