Quick Pin Chuck With Collets Great For Metalsmiths, Metal Working & Holding Bits. This is a new quick pin chuck with 3 collets Comes with 3 collets that can hold a variety of drill bits, burs, saw blades, files, etc This can be used in hand drills or electric drills The quick pin chuck measures approximately 2 1/16" x 1/2" (52 x 13 mm) Each collet measures approximately 15/16" x 5/16" (24 x 8 mm) We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.