The H.28H has a slender, comfortable design with tapered grip and pre-lubricated ball bearings that do not require any additional lubrication. Comes with 3/32" and 1/8" collets, and pin and chuck wrench for changing collets and accessories. Other fractional and metric collets are available and in Collet Set 600. SPECIFICATIONS: 5-1/4" long, 23/32" dia. (center) 1/2" dia. (taper) weight: 3 oz. ship weight. 4.35 oz. Made in USA Parts List: Click to view/download H.28 Handpiece Parts List with Components Diagram.