Gearwrench 114 Piece SAE/Metric Ratcheting Tap & Die Set. Minimum Tap Thread Size (Inch): #4-40. Minimum Tap Thread Size (mm): M3 x 0.50. Maximum Tap Thread Size (Inch): 4-40 – 3/4. Minimum Die Thread Size (Inch): #4-40. Minimum Die Thread Size (mm): M3x0.50. Maximum Die Thread Size (mm): M18 x 2.50. Number Of Taps: 48. Tap Material: Carbon Steel. Die Material: High Speed Steel. Die Hex Size: 1. Thread Sizes Included: #4-40 – 3/4 in. Includes: (2) Ratcheting T-Handles; (2) Sizes of Die Adapters; (2) Extension Adapters; (5) Screw Extractors; (3) Sizes of Tap Adapters; SAE & Metric Thread Gauges; Hex Key; (48) Taps & Dies in SAE & Metric Sizes Ranging from 4-40 to 3/4 in & 3 mm to 18 mm; A Sliding T. Number Of Pieces: 114. NIB Packaging is slightly damaged on one corner causing a minor dent on the outside of the case. Please review photos, comes as shown. 155 Center Ct, Venice, FL 34285.