With all steel, hardened and tempered bodies, solid construction, hardened ground jaws and knurled adjustable handles for extra grip. Straight handle design provides greater leverage, especially when using larger diameter taps. Tap sizes to ISO 529. | | Features and Benefits | • Hardened ground jaws for maximum longevity | • Knurled adjustable handles | • Handles are design to provide much greater leverage when using large diameter taps | | Standards Met | • ISO 529 | | Tap Wrench Set Contents: | • Square size: 2.8 – 5mm and 4.0 – 12mm.