Usage Tips:1Easy to use, suitable for cabinet hinge hole opening and effectively improve your working efficiency. 2With the use of advanced sintering technology and material, it is sturdy, wear resistant and has long service time. 3The blade makes the drill holes neat and smooth, and the adjustable design is more convenient to use as you need. 4The head radian curve design is for better drilling result, small incision resistance and the opening efficiency is improved. 5The chip removal is easy and the operation dust is less, the unique positioning plate is designed to allow opening hole more at ease. 6Adjustable positioning drill, precision scale, 15-40mm effective depth, suitable for thick wood plate of 14mm or more and various hinge drilling. 1 x Hinge Hole Opener Condition: Item Type: Hinge Hole OpenerMaterial: Hard AlloyApplication: It is designed to drill hole on hinge, wood work and plastic product.Width: 15mm, 20mm, 25mm, 30mm, 35mm (optional)15mm Size:Total Length: Approx. 77mm / 3.0inWidth: Approx. 15mm / 0.6inShank Diameter: Approx. 6mm / 0.2inSpacing Ring Length: Approx. 31mm / 1.2inInner Diameter: Approx. 8mm / 0.3in20mm Size:Total Length: Approx. 77mm / 3.0inWidth: Approx. 20mm / 0.8inShank Diameter: Approx. 7mm / 0.3inSpacing Ring Length: Approx. 31mm / 1.2inInner Diameter: Approx. 8mm / 0.3in25mm Size:Total Length: Approx. 78mm / 3.1inWidth: Approx. 25mm / 1.0inShank Diameter: Approx. 6mm / 0.2inSpacing Ring Length: Approx. 31mm / 1.2inInner Diameter: Approx. 8mm / 0.3in30mm Size:Total Length: Approx. 78mm / 3.1inWidth: Approx. 30mm / 1.2inShank Diameter: Approx. 8mm / 0.3inSpacing Ring Length: Approx. 42mm / 1.7inInner Diameter: Approx. 10mm / 0.4in35mm Size:Total Length: Approx. 78mm / 3.1inWidth: Approx. 35mm / 1.4inShank Diameter: Approx. 8mm / 0.3inSpacing Ring Length: Approx. 42mm / 1.7inInner Diameter: Approx. 10mm / 0.4inWeight: Approx. 57g-108g / 2oz- 3.8oz