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A measuring bar that creeps mid-cut quietly ruins repeat work — the first tile's right and the rest drift. This genuine Sigma replacement clamping knob locks the measuring bar securely on your Sigma 2G cutter, so your measurement holds tile after tile. It tightens smooth and controlled with strong holding power, exactly like the original.
Manufactured to exact Sigma specifications, it's the small part that quietly keeps your cuts accurate — the kind of thing you don't think about until a worn one starts slipping. Fits the Sigma 2G and compatible manual cutters.
Pro tip: If your repeat cuts are drifting even though your bar's set right, a worn knob that won't fully lock is often the culprit — this is the cheap fix.