Proto J7180P Impact Socket Extension, 1 2 in Drive, 2 in OAL, Alloy Steel, Black Oxide 4549K671 23 Features Foam Material Comes 23 Features Foam Material Comes with a Pressure Sensitive Adhesive on the Seam Flexibility Flexible Smoke Developed Index 143 Plenum Rating Plenum Rated Foam Cell Type Closed For Piping System Chilled Water Bonnet Style Screwed Finish Black Oxide SAE or Metric SAE Drive Type Impact Impact Rated Yes Standards ASME B107 SAE AS4984A Locking Yes Number of Points 4 Measurement Type SAE Output Drive Type Male Square Material Alloy Steel Input Drive Gender Female Output Drive Shape Square Non Sparking No Insulated No Input Drive Shape Square Output Drive Gender Male Socket Extension Type Standard Includes Insulation Not Insulated Impact Rated Status Impact Rated Includes Locking Locking Included Socket Extension Style Standard Additional Features: Drive end chamfer and four detents help provide quick positive engagement with drive tool on any of the socket drive walls Size stamped on tool for easy identification Side locking hole Country of Origin United States