Bosch T102D3 3-Piece 3 In. 6 TPI Clean for Polypropylene High Carbon Steel Jig Saw Blades Designed for cutting polypropylene based plastic up to 3/4 In. thick Ideal for straight, clean cuts Ground and taper back tooth design High carbon steel blade for softer materials Designed with optimal tooth spacing, shape and cutting angle to give you the best possible speed, cleanliness of cut and optimal performance Ground and taper back tooth design T-shank design for maximum grip and stability which fits 90-Percent of all current jigsaw makes and models Designed for polypropylene based plastic materials up to 3/4 thick