Milwaukee 4" (100 mm) × 9/32" (7 mm) bi-metal T-shank jig saw blades, 10 TPI for fast clean cuts in nail-embedded wood, mixed materials and thicker stock. Pack of 5 blades. Bi-metal construction extends blade life vs high-carbon steel. Compatible with all T-shank jig saws (Milwaukee, Bosch, DeWalt, Makita, Festool). Milwaukee P/N 48-42-5310.