PD-140 4 3/4" Master Chuck Assembly
The 4 3/4" (107.9 mm) I.D. master chuck is of an all welded, reinforced steel and tubing construction. The chuck is equipped with extra long chuck adaptor attachment lugs. Standard chuck adaptors are available in the following sizes: 2 1/2" ( 63.5 mm) I.D., 3" (76.2 mm) I.D., 3 5/8" (92 mm) I.D. and three channel post chuck adaptors for 1.2 to 1.5 lbs/ft, 2 to 2.75 lbs/ft and 3 to 4 lbs/ft posts. A chuck is available to drive 4" x 4" (101 mm x 101 mm) wood posts and a chuck and drive cap are available to drive 4" x 6" (101 mm x 152 mm) H column guard rail posts.
