3-Flat Black & Gold Contractor Drill Bit Set - 8 Piece - Reduced Shank - 9/16"-1" X 1/16THS Snap Rings One of the primary differences

One of the primary differences with leaf chain compared to roller chain is that it only consists of a series of stacked plates and pins

Black O-Ring OR-226

C Designates Straight Side Bars

HCST-206-19 (1-3/16") Take Up Bearing Unit W/ Eccentric Locking Collar

3-Flat Black & Gold Contractor Drill Bit Set - 8 Piece - Reduced Shank - 9/16"-1" X 1/16THS Snap Rings One of the primary differences8 Piece Contractor Drill Bit Set Black & Gold Reduced Shank High Speed Steel Size: 9 16" 1" x 1 16ths For use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling. Common 3" Flute Length and 6" Overall Length and 1 2" Shank for minimal adjustment during tool changes. 3 Flat shank creates an extra secure hold in your chuck.