Saber Saw Blade Pk3 Demolition 301535 Insulated Extension Bar3in Approved for Colour:Impact Wrenches Insulated Extension Bar3in Approved for live working up to 1 000 volts Integrated protective insulation with two colours toclearly indicate if there is any damage Ball recess on the female end to grip the ratchet Ball socket retainer on the male end to securely grip the socket Chrome vanadium Design and manufactured to DIN3123B and IEC60900 Specification Drive: 3 8 Length: 91mm Weight: 77 g once grease is coming out from the check hole (a small hole) on top of the cover Universal sabre saw reciprocating saw blade Universal shank that can be used on all Hitachi Sabre Saws and most other brands