JET SAE & Metric Alloy Tap and Die Set - 110 PiecesCOMPREHENSIVE TAP & DIE SET - JET's SAE & Metric Tap & Die Set is a comprehensive 110 piece set offering versatility of both SAE and metric threading; Suitable for professional and home use in automotive, machinery, and household repairsRELIABLE STRENGTH - Each piece is made of high quality alloy with Rockwell Hardness (HRC) 55-59 to ensure long-lasting, reliable performancePRECISE THREADING - Precision-machined threads provide accurate threading for professional-grade resultsWIDE RANGE OF SIZES - Available in various hole sizes and bolt diameters, with both coarse and fine threadsINCLUDES - Metal organizing case for easy ID and access, 1 plug tap, 1 bottom tap, 1 T-handle tap wrench, 2 die handles