Introducing the 10 Piece Starrett KSO-1000 Specialist Oscillating Blade Set, developed for professionals who require a broad range of combined options to handle different applications efficiently. Designed to deliver the best combination of applications on construction sites, this set fits most popular brands of multi-tool machines, though it is not compatible with Starlock. Contains:5 x KSO-00C34 Plunge HCS Oscillating Blades 40 x 34mm x 18 TPI5 x KSO-01C34 Plunge HCS Oscillating Blades - Japanese Teeth 40 x 34mm x 18 TPI | Starrett KSO-1000 Oscillating Blade Set, 10 Piece in Yellow