Instruction Sheet. Brochure. Greenlee 645 - 1 - 1/4 Specifications: It needs the 645 - 011 arbor (sold separately). This is a 1 - 1/4 inch (31.8 mm) quick - change stainless steel carbide - tipped hole cutter. Greenlee 645 - 1 - 1/4 Features: It can cut stainless steel rapidly and effortlessly. The quick - change arbor enables you to swap cutter heads with a simple push and turn, and you can use the same arbor for different - sized cutting heads. Removable cutter heads come in sizes from 5/8 inch to 3 inches. A flange stop prevents over - drilling. An ejector spring on sizes above 3/4 inch makes slug removal a breeze. There's a replaceable cobalt - steel pilot drill with a split - point tip to stop it from wandering. Precision carbide teeth offer top - notch performance and long - lasting durability. The minimum chuck size is 3/8 inch (9.5 mm).

Using the Greenlee 645 - 1 - 1/4 hole cutter is easy. First, make sure you have the 645 - 011 arbor, as it's sold separately. Install the cutter head onto the arbor with a simple push and turn. When drilling, the flange stop will prevent you from drilling too deep. After drilling, if the cutter size is above 3/4 inch, the ejector spring will help you easily remove the slug. The replaceable cobalt - steel pilot drill with a split - point tip keeps the cutter from walking around. As for maintenance, keep the precision carbide teeth clean after each use. If the pilot drill gets dull, replace it to ensure good performance. Also, store the cutter in a dry place to avoid rust. Remember, the minimum chuck size required is 3/8 inch (9.5 mm), so make sure your drill meets this requirement.