LineLock

LineLock – Magnetic Pencil Guide for Rulers Stop juggling tools – let LineLock hold the pencil for you.LineLock is a magnetic pencil holder that clips onto your metal square ruler, letting you draw straight, parallel lines without needing a third hand. Perfect when you need both hands on the ruler for stability or precision, especially over long distances.Strong magnets keep it locked in place, and your pencil stays perfectly aligned — just slide and mark. Why it works:Hands-free line markingStrong magnetic gripClean, repeatable linesFits standard metal square rulersA simple upgrade for smoother workflows in the shop.