METRIC TAP DIE SET. CARBON STEEL TAPS AND DIES SET. SET OF 3 TAPS AND SPLIT DIES OF 1" & 1.1/2" OD M3 x 0.50 MM + M4 x 0.75 MM + M6 x 1.00 MM + M8 x 1.25 MM + M10 x 1.50 MM + M12 x 1.75 MM INDIVIDUALLY PACKED. FREE THREAD CHART.