Features Durable Aluminum Alloy Construction: Crafted from premium aluminum alloy for long-lasting durability and reliability in woodworking projects Versatile Compatibility: Designed to fit T screws and quick-acting clamps, ensuring seamless integration with various tools and fixtures Convenient 30 Type Design: Offers 30 different configurations for precise cuts and adjustments, enhancing your woodworking efficiency Multiple Size Options: Available in 500mm, 600mm, and 800mm lengths to suit various project requirements and workspace dimensions Easy to Use: Simple setup and operation make this track jig an essential tool for both beginners and experienced woodworkers Features: 1、The bimetal band saw blade is preferred, and the cutter head is made of M42 high-speed steel, which has been quenched at high temperature. 2、The positioning drill bit of the hole opener is accurate and stable, using high？quality high？speed steel materials, and has a long service life. 3、Great workmanship, unique opening design, accurate positioning, can ly meet your punching needs. 4、Equipped with a quick？release spring, easier to be taken out after cutting. 5、Wide range of applications, can be used to open holes in various wood panels, acrylic, aluminum gussets, iron sheets and other materials. Specification: Item Type: Bi-Metal Hole Saw Cutter Set Material: M42 high speed steel Use Equipment: Hand drill, bench drill and other flat drilling equipment Applicable Scope: Can be used to open holes in various wood panels, acrylic, aluminum gussets, iron sheets, etc. Size (Dia): Approx. 80mm / 3.1in 85mm / 3.3in 90mm / 3.5in 95mm / 3.7in 100mm / 3.9in 105mm / 4.1in 110mm / 4.3in 115mm / 4.5in Package List: 2 x Hole Saw Cutter 2 x Drill Bit Package List 2 x Hole Saw Cutter 2 x Drill Bit