Diablo, 4" 6 TPI carbide T-shank jig saw blade for fiber cement & plaster. Diablo's carbide teeth jig saw blades deliver extreme durability and superior cutting life in abrasive materials such as fiber cement and plaster. High-performance carbide teeth provide an unmatched up to 50 times longer cutting life versus standard jig saw blades. The optimized blade design and perma-shield non-stick coating reduces heat and pitch build up for fast and effortless cuts. T-shank design fits all combo and most U-shank cordless and corded jig saws.