Feature 1Detachable depth buffer, adjustable drilling depth, adjustable effective depth, usually used for drilling holes to hide hinges and door locks. 2Incisive cutting edge, smooth cutting, and the arc curve is conducive to chip removal and improves drilling efficiency. 3It is suitable for wood product drilling, wood processing and maintenance, model making, spherical door installation, drawer installation, etc. 4Selected high quality high speed steel materials, with high hardness, wear resistance, corrosion resistant, and long service life. 5Woodworking hole opener kit, including 5pcs drill bits, 5pcs accessories, 2pcs wrenches and 1pc storage box, compact and portable.Item Type: Hole Opener KitMaterial: High Speed Steel Weight: Approx. 463g / 16.3ozProduct Size: Approx. 15mm / 0.6in, 20mm / 0.8in, 25mm / 1.0in, 30mm / 1.2in, 35mm / 1.4inScope of Application: Home decoration, carpentry opening, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List5 x Hole Opener5 x Accessory2 x Wrench1 x Storage BoxNote1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.