Spine Creaser Muller 1528/1529 for Muller Martini Cover Feeder Model 1528/1529 Why should you try the Spine-Creaser? Totally eliminates fiber cracking 100% on cover stocks Totally eliminates ALL off line scoring for your saddle-stitched books Totally eliminates ALL outsourcing of creasing operation ....keep it all in your control! Saves your die cutters or printing presses fro more complex, profitable work Faster delivery to your customers!