3/8" Drive 21mm Deep Socket

Our 3/8" Drive 6-Point Sockets with FOUR FLAT™ Sides are designed from the ground up to be part of the most versatile socket family. MILWAUKEE® sockets feature an innovative design with four parallel flat sides, which deter rolling and are wrench-compatible. The socket sizes are stamped into the flats providing you with improved, easy-to-read visibility. These deep and standard socket sizes have optimized geometry to reduce bolt rounding and stripping. We back all our sockets with a lifetime guarantee.

  • FOUR FLAT™ Sides deter rolling
  • Wrench-ready FOUR FLAT™ sides
  • Stamped Sizes for Better Visibility
  • Chrome Finish
  • Optimized Geometry to prevent rounding
  • 6 Point Socket
  • Corrosion Resistant
  • Deep Well Depth Socket
  • Lifetime Guarantee

Product Specifications

Classification No
Standard Standard
Socket Depth Deep
Size 21mm
Length 1.09448818897638 in
Weight 0.4 lb
Height 2.48031496062992 in
Width 1.09448818897638 in
Depth Deep Socket
Material Composition Chrome Vanadium Steel
Material Application Fastening
Drive Size 3/8 in