Astro Pneumatic 1/2 " Drive Flip Socket 17mm x 19mm

Features and Benefits:

• Made of Chrome Molybdenum (CRMO)
• O.D. (top): 0.99 in.; O. D. (bottom): 1.06 in.
• Designed to tackle the toughest jobs with solid durability and keeps them pounding job after job
• Black oxide finish and has etchings for identification

This is a flip socket. It is 17 mm x 19 mm. It is 1/2 in. drive.