Screw Driver Bit, 1/4" Hex Triwing

      Part #- Recess Size-Tension -Shear                   

• H-TWD-0     0    0-80                        
• H-TWD-1     1    2-56           4-40                   
• H-TWD-2     2    4-40           6-32
• H-TWD-3     3    6-32           8-32
• H-TWD-4     4    8-32         10-32
• H-TWD-5     5  10-32        1/4-28
• H-TWD-6     6 1/4-28      5/16-24