On a busy day of repeat cuts, the one thing you need to trust is that your measuring bar stays put. This genuine Sigma replacement clamping knob lever locks the measuring bar securely on Sigma 3 Series cutters, so your set measurement holds through cut after cut and your pieces come out the same width every time.
It's a genuine Sigma replacement part, made to fit and function exactly like the original — the simple component that keeps a workhorse cutter accurate. For Sigma 3 Series manual tile cutters.
Pro tip: If the bar shifts under light pressure, replace the knob before it costs you a stack of mismeasured tile — it's a two-minute fix.
