The SquareMaster is a holder for your belt is specifically made fo fit Speed Squares and rafter squares. It's a complete reboot of the classic holster seen on Tom Silva's This Old House. This holster is built from hard anodized aluminum and is so light it will disappear when you're not using it.
Made to fit up to a 1.75" belt, it features quick-insertion for eyes-free use and a passive retention finger that will keep your square from falling out even if you're hanging upside down from the rafters.