Kent T244D, 10 Pack 4" 5-6 PRO TPI, HCS T-Shank Jig Saw Blades, For Curved and Fast Cuts in Hard and Soft Woods Pack of 10: Kent T244D, 4.0" OAL, 5-6 Pro TPI, HCS, T-Shank Jig Saw Blades For Curved Cuts, Very Fast Cuts and Plunge Cuts in Hard and Soft Woods, OSB, Plywood Overall Length: 4.0" (100 mm), Working Length: 3.0" (75 mm) Blade is Ground and Side Set Made with high Carbon Steel