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