Astro Pneumatic. Grey Pneumatic. Grey Pneumatic 1226M - 26pc 3/8" Drive 6pt Socket Set. Grey Pneumatic 1210UMD- 10pc 3/8" Drive Deep Length Set. Grey Pneumatic 1319 - 19pc 1/2" Drive Std.Master Set. Made to transfer the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength.
