About this item Material: Made of metal Size: Overall length: 37.6 mm / 1.48 inch; Rod diameter: 3.175 mm / 1/8 inch Easy to use: First install the disc onto the larger end of the shank mandrel, then install the other end onto the rotary tool Application: This cutting disc handle holder is suitable for most rotary tools Package includes: 20 * Cut Off Wheel Screw Mandrel