Features: - Precision Hole Driller: The hole puncher can accurately drill holes up to 0.25mm, providing a precise solution for locating drill holes. - High-quality Material: Composed of aluminum and stainless steel, this black hole driller is durable and perfect for woodwork. - Round Tenon Connection: This woodworking tool allows you to punch precise holes and use round tenons to connect the panels. - Micro-adjustment Function: The driller is designed with a micro-adjustment knob. When measuring panel thickness, you can adjust this knob accurately to 0.25mm. - Two in One Woodworking Tool: This is not just a hole opener, but also an accurate hole positioning device for your DIY woodworking projects. Specifications: - Material: Aluminum and Stainless Steel - Color: Black - Main Rod Length: 233mm - Limit Ring Size: 6mm, 8mm, 10mm - Stainless Steel Locator Rod Size: 10mm - Optional Type: A (No Clip) / B (With C Clip) Package included: Type A: - 1 x Main Body - 1 x Extension Rod (233mm) - 3 x Limit Rings (6mm, 8mm, 10mm) - 2 x Stainless Steel Locating Rods (8mm, 10mm) - 1 x Inner Hex Wrench (3mm) - 3 x Triangle Drill Bits (6mm, 8mm, 10mm) - 1 x Drill Sleeve (6mm, 8mm, 10mm) - 1 x Stainless Steel Locating Rod (10mm to 6mm Adapter) Type B: - 1 x Main Body - 1 x C Clip - 1 x Extension Rod (233mm) - 3 x Limit Rings (6mm, 8mm, 10mm) - 2 x Stainless Steel Locating Rods (8mm, 10mm) - 1 x Inner Hex Wrench (3mm) - 3 x Triangle Drill Bits (6mm, 8mm, 10mm) - 1 x Drill Sleeve (6mm, 8mm, 10mm) - 1 x Stainless Steel Locating Rod (10mm to 6mm Adapter)