Features: brand new and high quality 1. The blade is made of high-quality alloy, perfect sintering process, for sharp and long service life. brand new and high quality 2. The positioning adopts powder alloy die-casting, and the curve design is beneficial to chip removal and drilling. The special detachable support design makes drilling easier. 3. It can be used for most hand-held electric drills/cordless electric drills/for bench drills, suitable for drilling smooth holes in wooden products. 4. Tool handle type: Hexagonal handle 5.Diameter: 15mm/20mm/25mm/30mm/35mm，5 Specifications Can be Selected Specifications: Material:Alloy Category: Reamer Quantity: 5 Pcs/set Tool handle type: hexagonal handle Drill Diameter1:Approx.15mm/0.59inch Drill Diameter2:Approx.20mm/0.78inch Drill Diameter3:Approx.25mm/0.98inch Drill Diameter4:Approx.30mm/1.18inch Drill Diameter5:Approx.35mm/1.37inch Package Includes: 5xDrill Bit note: 1.Please allow 1-2mm 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.