Gripper Strips for Delta IV Master Jaws 4" Serrajaw Strip (Pair) Anderson Manufacturing Serrajaw 0.500" slot width 0.063" max gripping height M5 or 10-32 low head cap screws Fits slots designed for Mitee Bite Talon grips 4" Piranha Jaw Strip (Pair) MMM USA Piranha Jaw 0.700" slot width 0.125" max gripping height 5/16" low head cap screws Slot width is proprietary