C1/16 W X 1/2 H X 4-1/2" P1 5% Cobalt Parallel Cut-Off Blade ~ Superior type of high speed steel which works better in high heat applications. ~ Use this type of blade for heavy cuts in hard materials. ~ Parallel style blades have continuous width of cutting edge throughout length of blade. ~ Can be used with Loris, DORIAN & KDK type quick-change tool holders. ~ Chip breaker groove ground along the top length of the blade. ~ One beveled end, one square end.