1mm to 6mm tap holder or 1/16 to 1/4" tap-wrench :

To suit tap sizes:
1//16 3/32 1/8 5/32 3/16 7/32 1/4 BSW BSF UNC UNF BSB ME BS Cycle 26tpi 
0BA 1BA 2BA 3BA 4BA 5BA 6BA 7BA 8BA 9BA 10BA 11BA 12BA 13BA 14BA 15BA 16BA
Metric 0.8mm 0.9mm 1mm 1.1mm 1.2mm 1.3mm 1.4mm 1.5mm 1.6mm 1.7mm 1.8mm 1.9mm
2mm 2.2mm 2.3mm 2.5mm 3mm 3.5mm 4mm 5mm 6mm taps

1mm to 12mm tap holder or 1/16" to 1/2" tap-wrench :

To suit tap sizes:
1//16 3/32 1/8 5/32 3/16 7/32 1/4 9/32 5/16 3/8 7/16 1/2 BSW BSF UNC UNF BSB ME BA BS Cycle 26tpi 
Metric 0.8mm 0.9mm 1mm 1.1mm 1.2mm 1.3mm 1.4mm 1.5mm 1.6mm 1.7mm 1.8mm 1.9mm
2mm 2.2mm 2.3mm 2.5mm 3mm 3.5mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11m  12mmm
1/8 1/4 BSP BSPT NPT taps

6mm to 20mm tap holder or 1/4 to 3/4" tap-wrench :

To suit tap sizes:
 1/4 9/32 5/16 3/8 7/16 1/2 9/16 5/8 3/4 BSW BSF UNC UNF BSB BS Cycle 26tpi
Metric 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm 18mm 20mm taps
1/4 3/8 1/2 BSP BSPT NPT taps 

9mm to 27mm tap holder or 3/8 to 1-1/16" tap-wrench :

To suit tap sizes:
Inch sizes
Metric sizes

16mm to 30mm or 5/8 to 1-3/16" tap-wrench :

To suit tap sizes:
Inch sizes
Metric sizes

20mm to 38mm or 13/16 to 1-3/8" tap-wrench :

To suit tap sizes:
Inch sizes
Metric sizes

25mm to 50mm or 1" to 2" tap-wrench :

To suit tap sizes:
Inch sizes
Metric sizes