Larger in every respect than a standard no. 30-style handpiece, the Big Guy Handpiece features a gracefully contoured aluminum grip that provides greater control while being more comfortable to use. Its 3-jaw chuck will hold the tiniest wire gauge drill as well as other rotary tools with shanks up to 1/4" diameter (actual range: 0-6.5 mm), which is a wider range than similar handpieces. There are two styles of the Big Guy Handpiece: item 236-431 is designed for use with the Economy Flexshaft no. 236-971 (see related products below), and item 236-432 is used with Foredom brand flexshafts. Measures 6" long overall and is provided with a chuck key. Made in China.