Checkpoint Magnum Mag Base (# 312 )

The Magnum Mag Base is designed to be a super fast and versatile layout aid at an even 12 x 1 inches long including a variable slope/pitch "Jack Screw System". It features five neodymium rare-earth magnets for a superior magnetic ratio, is laser engraved with a 12 inch at 1/8 Imperial scale (US) and will uniquely accommodate the 880 Square series when attached. The patented Jack Screw System allows one to project any intermittent slope or grade with the laser by simple thumb wheel adjustment - or use the same seven piece Slope Pin Set for exact projections of slope/grade as the Stubby base. Centering notches at each end, fully machined and anodized finish also compliment the Magnum series. Great care in the small unseen components such as spring washers and solid brass parts make the feel and the function the professional's choice. THE SLOPE PINS attach under either end of the base as indicated on the base sides and are held in place by the neodymium magnets centered on the flat side. They give exact slopes or grades with no calculation depending on your choice of slope pin size.