Description: Material: Vertical drill guide doweling jig kit is made of aluminum alloy, which is strong and wear resistant, not easy to deform, ensuring long term performance and reliabilityEasy to Install: Guide doweling jig kit, high reliability and performance, compact and portable, easy to use, to meet your different needsHigh Performance: Positioning puncher, professional manufacturing, stable performance, help you work on wooden furniture easily and accurately, saving time and effortFunction: The woodworking punching tool is equipped with different sizes drill sets to meet your different work needs, improve work efficiencyWide Application: Hole puncher has many uses, suitable for DIY home projects, professional woodworking, furniture making, etc Specification: Material: Aluminum Alloy Size Chart: 4 cm x 4.8 cm/1.57 inch x 1.89 inch Package Includes: 1x Vertical Positioning Puncher1x 2mm Drill Bushing1x 3mm Drill Bushing1x 4mm Drill Bushing1x 5mm Drill Bushing1x 6mm Drill Bushing1x 7mm Drill Bushing1x 8mm Drill Bushing1x 9mm Drill Bushing1x 10mm Drill Bushing Note: Please allow slightly errors 1-2cm differences due to manual measurement.