The Grey Pneumatic 3/8" Drive x 21mm Standard Universal Socket (1021UM) is a versatile and durable tool designed to meet the demands of professional mechanics and DIY enthusiasts. Crafted from high-quality alloy steel and featuring a precise heat treatment process, this socket offers exceptional strength and longevity.

KEY FEATURES AND BENEFITS:
Universal Fit: Accommodates a wide range of bolt sizes, eliminating the need for multiple sockets.
Durable Construction: Made from high-quality alloy steel for long-lasting performance.
Precise Heat Treatment: Ensures optimal balance of strength and durability.
SPECIFICATIONS:
Drive Size: 3/8"
Size: 21mm
Material: Chrome-molybdenum alloy steel
Finish: Black oxide