Feature: 1. 21Pcs in 1 Set: The kit contains 21pcs straight saw blades, which are sufficient in quantity for easy replacement. 2. High Carbon Steel Material: Using excellent high carbon steel material, has good cutting performance, wear resistant and rustproof. 3. With Size Marks: There are size marks on both sides of the saw blade to ensure quick and accurate cutting when in use. 4. For Cutting Wood and Plastic: These saw blades are very suitable for sawing, scraping, shaping, polishing and cutting wood and plastic. 5. Strong Compatibility: These oscillating saw blades have standard size and are compatible with many oscillating tools on the market. Specification: Item Type: Oscillating Saw Blade Material: High carbon steel Uses: Cutting wood and plastic, opening holes Applicable Scenarios: General hole type, suitable for most domestic and foreign brands of machines, such as for Bosch, for DREMEL, for FEIN, for WORX, etc. Products Include: 5pcs 34mm high carbon steel straight saw blades 5pcs 34mm precise tooth straight saw blade 2pcs 34mm bimetal straight saw blades 3pcs 20mm high carbon steel straight saw blades 3pcs 44mm high carbon steel straight saw blades 3pcs 44mm precise tooth straight saw blades Package List: 21 x Straight Saw Blade Note: When using the saw blade, pay attention to the working condition of the saw blade at any time. If abnormalities such as vibration, noise, and material removal on the processing surface occur, it must be stopped in time for adjustment.