The 4512S is used with a multiple Door Hinge Mortise Jig setup and lets you flip the entire setup end-for-end so you can do both right and left hand doors with one setup, IF the hinge jigs are evenly spaced.

• Special Flip Stop for use when mounting multiple 8530-8560 Door Hinge Jigs to a length of our Double Track. Two Flip Stops recommended.
• Flip Stop attaches to a length (72" or 95" recommended) of our 4000 Double Track, not included - order separately.
• 8510 Hardware Kit (order separately) is required to mount up to three Door Hinge Jigs to Deluxe Track.
• Lifetime guarantee against defects in material or workmanship. Made in the USA!