Professional grade tap & drill bit set. Each graduation includes a complete set of 3 taps. Specifications • Case Dimensions: 172 x 105 x 57mm • Weight: 1.10kg Features and Benefits • 21 Professional grade cobalt taps (7 complete sets) • 7 drill bits • Supplied in metal storage case Contents • Tap Sets: M3 - M4 - M5 - M6 - M8 - M10 - M12 • Drill Bits: 2.5 - 3.3 - 4.2 - 5.0 - 6.8 - 8.5 - 10.2 mm • BT.228J2 Storage Case