FOREDOM ® HANDPIECE H.28H SQUARE DRIVE HANDPIECE - ROTARY TOOL - COMES WITH - 2 COLLETS 3/32"- 2.35mm & 1/8" 3.17mm - SLENDER ROTARY HANDPIECE - Foredom's SQUARE DRIVE slender handpiece - 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. This #28H slender model handpiece attaches for use with Series SRH, TXH, LXH and discontinued H motors without a large plastic sliding positive locking mechanism that comes on the other 3 models of square drive handpieces. Handpiece comes with pre-lubricated ball bearings that do not require any additional lubrication. The unit comes with 2 interchangeable collets. NOTE: This handpiece is SQUARE DRIVE WILL NOT WORK with interchangeable Foredom Handpieces having a connection for the Standard Key Tip Drive Shaft. Specifications: Made by Foredom USA - Drive Connection: SQUARE DRIVE - will not work with Standard Key Tip Drive Shaft - Overall Length: 5-1/4" - 133mm - Collets Sizes: Comes with 2 ( 3/32"- 2.35mm & 1/8" 3.17mm ) - Diameter CENTER: 1/2" -12.7mm Center Section >Tapers in the Front - Weight: 3 oz.