Sigma Kera-Cut Extendable Scoring Guide — Straight Scores on Big Panels Gauged porcelain panels are big, flat, and unforgiving — a guide that flexes or wanders turns an expensive panel into scrap. The Sigma Kera-Cut is built to score them dead straight. Made of aluminum and stainless steel, it's extremely lightweight yet rigid, so it won't flex mid-score, and it extends to handle large-format panels and oversized tile that won't fit a standard cutter. A scoring carriage driven by three stainless-steel wheels with integrated bearings gives you the smoothest possible travel, and a dual-handle system keeps pressure consistent and controlled across the whole length of the score. For straight, confident scoring on GPTP and oversized formats, it's the guide that earns its place on big-panel jobs. Keep it cutting clean with a genuine Kera-Cut replacement wheel, and add the Kera Flex blade carriage when you need to cut thick panels with a grinder. Why Tile Pros Choose It Flex-free scoring: Aluminum and stainless build stays rigid for straight scores Extends for big panels: Handles gauged porcelain and oversized formats Smooth travel: Carriage rides three stainless wheels with integrated bearings Consistent pressure: Dual-handle system for controlled scoring Lightweight: Easy to position and carry on the jobsite System-ready: Accepts the Kera Flex blade carriage for thick-panel cutting Pro tip: Support the panel fully and flat before you score, and make one continuous pass at steady pressure — stopping mid-score leaves a witness mark that can throw the break. Confirm the guide is locked at your measurement before committing.
