GRS Airtact handpieces, when used in conjunction with the GraverMach AT control (see related products below), allow you to use your hands to control your handpiece. Simply press the Palm Pad (rubber end) at the backside of an Airtact Handpiece to activate it. The Magnum AT Handpiece has a full range of power from the finest shading to heavy hammering. It is perfect for artists with large hand sizes, as well as those looking for additional power and maximum versatility. The ergonomic knob shape lends itself to a more natural hand position when engraving or setting stones. Measures 3” long and is provided with a set of 6 standard QC tool holders (additional holders available below), Allen wrench, Palm Pads (3), Palm Caps (4), Phillips head screwdriver, and a length of 1⁄4" flexible tubing. Made in USA.