Flexbar Machinable Wax. Very Machinable Material You Can easily Machine Flexbar Machinable Wax Without the need for costly and messy coolants or lubricants, because Machinable Wax is "self-lubricating", "Non-abrasive" and it will Not fuse when Machined at high-end spindle rpms and feed rates. Unlike wood or plastic, MACHINABLE WAX will not "gum up" on tool bits. As illustrated by the machined and assembled prototype on the front of this bulletin, sharp edges can be maintained, accurate threads can be cut and thin wall sections maintained with the quality of surface finish capable of being produced by your cutting tools and machine. MACHINABLE WAX is not cellular, grainy, or abrasive so "voids" in machined surfaces (common with plastics and wood) and "tool wear" are negligible. Flexbar Machinable Wax will also machine "within designated tolerances" to provide you with a dimensionally accurate prototype that can be assembled for checking.