7-piece Screwdriver Set: Great General Purpose set of cushion grip screwdrivers. Cushion grip allows greater torque and comfort. Internal flanges inside handle prevent blade from twisting. Special Heat Treated shafts. Precision machined tips for exact fit. Meets or exceeds ASME/ANSI specifications. Keystone tip (blade) screwdrivers include 3/16” wide tip 6-3/4” long, 3/16” wide tip 9-3/4” long, ¼” wide tip with heavy duty square 4” shank for wrench assisted turning, ¼” wide tip 8-11/32” long, 5/16” wide tip 10-15/16” long. #1 Phillips tip 6-3/4” long and #2 Phillips tip 8-5/16” long.