A 12-piece hand threading set covering four machine screw sizes and one fractional size, with a die stock and T-handle tap wrench included. Threads are precision cut, heat treated and tempered file hard.

• Machine screw plug taps and dies: 6-32 NC, 8-32 NC, 10-24 NC, 10-32 NF
• Fractional plug tap and die: 1/4-20 NC
• Includes 5/8" die stock and 0"-1/4" T-handle tap wrench
• Dies are 5/8" across the flats
• Precision cut threads
• Heat treated and tempered for file hard threads
• Designed for hand cutting applications
• 12 pieces total
• Century Drill part 98924