Machine Shop Products › M8 Base Gaskets .010 Thicknes Image 1 of 1 M8 Base Gaskets .010 Thicknes $38.00 Cometic base gaskets for our 124 and 128 kits - .010 for best compression results. Add To Cart Added! Cometic base gaskets for our 124 and 128 kits - .010 for best compression results.