This bundle consists of 37315, 37316, and 37323
37315 - 3/8" Drive Shake and Brake Air Hammer Bit
37316 - 1/2" Drive Shake and Brake Air Hammer Bit
Attaches to air hammer to provide vibration while removing stubborn/frozen fasteners or torx bolts/nuts
Other end of each unit has either a 1/2" or 3/8" square drive to be used with impact sockets
37323 - 3 Pc Long Punch and Scraper Set
Features the standard .401 shank size
1-1/8" x 18" Pneumatic Scraper
3/8" x 18" Pneumatic Taper Punch
1/8" x 18" Pneumatic Taper Punch