A 3x1 Gridfinity block to hold the Makita Razor Knife, Spare blade's in protective capsule and a small accessory slot 15.8mm x 15.8mm for anything extra.

Also included is a version with encapsulated magnets if you prefer that rout, simply add a pause at the appropriate layer to drop your magnets in before continuing.

Print as you would any Gridfinity pieces. The print pictured was done via PrusaSlicer on a Prusa MK4 w/ input shaping @ 0.15mm SPEED layer settings, 15% infill, with a 0.4mm nozzle. No supports needed.