Features High-Quality Material: Constructed from premium aluminum alloy, ensuring durability and longevity for all your drilling needs Versatile Hole Sizes: Includes drill bits and a wood hole opener, allowing you to create holes of various sizes effortlessly Adjustable Design: Features an adjustable rotating knob, accommodating different thicknesses of wood boards for enhanced customization Superior Abrasion Resistance: Anodized finish protects against wear and tear, guaranteeing a long service life and consistent performance Exceptional Strength: This set boasts high hardness and wear resistance, making it a reliable choice for both DIY enthusiasts and professionals Features: 1、Made of high grade aluminium alloy material of good quality with heat treatment for durability 2、Comes with drill bits and wood hole opener for making different sizes of holes 3、Equipped with adjustable rotating knob to fit different thickn of wood boards 4、The is anodized to improve abrasion resistance, which guarantee a long service life 5、This 3-in-1 hole puncher set poss high hardn and strength, very wear-resistant Specification: ？？Item Type: 3-in-1 Hole puncher set Specification: 08350-S Material: Aluminum alloy Treatment: Anodizing Scope of Application: Household Size of Drill: Approx. 8mm / 0.3in, approx. 10mm / 0.4in, approx. 15mm / 0.6in Size of Dowel: Approx. 8mm / 0.3in Package List: 1 x 08350-S Disk Dowel Puncher 1 x 08600 Hole Puncher 1 x Hole Opener 2 x Drill 3 x Dowel 4 x Spacing Ring 5 x Screw 20 x Wooden Anchor 2 x Drill Sleeve 1 x Hex Wrench 10 x Embedded Parts 10 x Eccentric Nut 10 x Punching Knife Package List 1 x 08350-S Disk Dowel Puncher 1 x 08600 Hole Puncher 1 x Hole Opener 2 x Drill 3 x Dowel 4 x Spacing Ring 5 x Screw 20 x Wooden Anchor 2 x Drill Sleeve 1 x Hex Wrench 10 x Embedded Parts 10 x Eccentric Nut 10 x Punching Knife