Features Durable Aluminum Alloy Construction: Crafted Features: 1、It is made of 6150 industrial grade aluminum alloy with good strength and high resistance, and long service life 2、Large clamping range, the maximum is 60mm 3、The drill bushings adopt 60CR bearing steel material, high strength and accurate positioning 4、Comes with 9 drill bushings in 3 sizes, meet different needs in the wood drilling hole proc 5、Large clamping range, the maximum is 60mm Specification: Descriptions: This doweling jig is made of 6150 industrial grade aluminum alloy with good strength and high resistance, and long service life. Large clamping range, the maximum is 60mm. Comes with 9 drill bushings in 3 sizes, meet different needs in the wood drilling hole proc. Features: It is made of 6150 industrial grade aluminum alloy with good strength and high resistance, and long service life. Large clamping range, the maximum is 60mm. The drill bushings adopt 60CR bearing steel material, high strength and accurate positioning. Comes with 9 drill bushings in 3 sizes, meet different needs in the wood drilling hole proc. Large clamping range, the maximum is 60mm. Equipped With positioning scale, determining the distance between the first hole and the clamp. Specification: Material: aluminum alloy Color: blue Drill bushings size: 6/8/10mm(3pcs/each type) Positioning dowel: 6/8 /10mm Suitable wood size: 17-60mm/0.67-2.36inch Size: Approx. 23.5 x 10 x 3.8cm/9.25 x 3.94 x 1.50inch Weight:780g How To Use: 1. Adjust the positioning scale to determine the distance between the first hole and the board end. 2. After fixing the position, select the drill bit that matches with the drill bushings to start drilling. 3. Remove the nuts on the scale after holing three holes 4. Use the positioning pin to fix the hole on the third hole (make sure the distance of each hole is the sam Package List