Tekton SHB91313 Socket Bit Set 1 25 Pieces, 3 8 in Drive Size, 8 Pieces, 1 8 in to 3 8 in Tip Size Range G3190385 Material Application Cast Iron Material Application Cast Iron To protect doors and walls Case SAE or Metric SAE Item Socket Bit Set Measurement Type SAE Series Long Hex Bit Sockets Includes Insulation Not Insulated For Screw Type Hex Tether Status Not Tether Capable Replaceable Insert Capable Fixed Insert Drive Type Hand Impact Rated Status Not Impact Rated Tip Style Hex Container Type Case This 25 piece set covers 1 8 in to 3 8 in tip sizes and arrives organized in a clearly labeled case for quick identification and storage