Coin-type tool with flanged hole to adjust the side wire without damaging the centre element and outer rim to measure the electrode gap. Metric 0.5 - 2.55mm, imperial 0.02 - 0.1". Solid alloy steel.
Solid alloy steel
Metric (0.5 - 2.55mm) & imperial (0.02 - 0.1")
Flanged hole allows adjustment of side wire without damaging centre element