Master Mechanic, 5 Piece, Metal Cutting, High Speed Steel, Jig Saw Blade Set, 1/4" Universal Shank, Wood & Plastic, Designed To Cut Through Hard Or Soft Wood, Plastic & Metals Up To 1/4" Thick, Includes 1 Each Of The Following: 3-1/2" 6 TPI, 3-1/2" 10 TPI, 2-3/4" 14 TPI, 2-3/4" 18 TPI & 2-3/4" 24 TPI, Carded.