No. of Blades 22

ISO Metric

Threads per mm 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5,

3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0

Screw Cutting Gauge included 60 degrees

Note: SI (System International) metric blades should not be used to check ISO (International Standards Organisation) metric threads due to interference of the thread forms; but ISO metric blades can be used to check SI metric threads.