Features: 100% brand new and high quality Sharp high-carbon steel design. Can reduce resin accumulation, so that cleaning can be done quickly and easily. This professional drilling bit is not only ideal for leveling planks, resurfacing or planing the top surface of tailboards, but also ideal for trimming and grooving. A great alternative drilling tool for carpenters and carpenters! Suitable for solid wood, medium density fiberboard, laminate, particle board, plywood compaction board, acrylic, etc., avoid cutting metal and non-wood materials. Handheld and desktop portable routers, such as woodworking engraving machines, trimming machines. Quality is guaranteed, please rest assured to buy Package Includes: 5 PiecesxDrill Bit Specifications: Material:High-carbon Steel Style1: Flat Wing Drill Single Tooth Style2: Sensitive Mouth Diamond Size: Approx.1.5cm/0.59inch Size: Approx.2cm/0.79inch Size: Approx.2.5cm/0.98inch Size: Approx.3cm/1.18inch Size: Approx.3.5cm/1.38inch note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.