Pégas Scrollsaw Blades are manufactured in Switzerland from high quality carbon steel. Same as regular scroll, these blades have good performance for use with 15” and 16” power scroll saws such as Sears, Craftsman, Delta, and Ryobi. Technic Characteristics Pack of 6 units Length 127 mm Weight 25 g Is available in the following sizes: Ref. PGS90.475C 127x0,50x3 mm, 20 TPI Ref. PGS90.476C 127x0,50x3 mm, 15 TPI Ref. PGS90.477C 127x0,50x3 mm, 10 TPI Ref. PGS90.478C 127x0,52x2 mm, 25 TPI