Actual Dimensions - 35.75" (Due to cutting kerf width) Resistant to temperature and moisture expansion Superior wear resistance More easily machined to close tolerances Naturally slippery surface Cut tolerance -0.25" Acetal copolymer (Delrin) sheets provide a naturally slippery surface and superior wear resistance. Since they resist expansion from temperature and moisture, they can be machined to close tolerances. Acetal copolymer is good for gears, bearings, bushings and other projects that require precision.