Complete Set, Versatile Use: Our product comes as a set of 48 scrolling saw blades, featuring multiple variations such as 15 TPI, 18 TPI, and 24 TPI. Whether you're looking to perform fine, fast or even aggressive cuts on different materials, like wood, plastic, or thin non-ferrous metals such as copper, zinc, lead, or aluminum, this kit meets all your needs. Perfect Compatibility: Our 4 inch pin end saw blades are an exceptional replacement option for machines requiring this specific size fitting perfectly with models like for the MS20, MS20-01, MS51-01, MS52-01, MS53-01. Restore your machine's efficiency without making significant investments. Premium Quality, Durability Ensured: Made using high-grade carbon steel, our blades stand out for their impressive hardness and wear resistance. They precise cutting while being rugged enough to withstand regular use, promising an extended lifespan and for money. Increased Efficiency: Designed with skill, every tooth on our saw blades is polished to facilitate accelerated but meticulous cutting. Rest of significantly enhanced performance every time, regardless of the job's nature or the material in question. Simple Installation, Easy Operation: The replacement blades we offer are straightforward to install and operate, meaning you can enjoy a hassle-free, user-friendly experience. They are reliable for prolonged usage, making them an excellent choice for both professional and DIY projects. Pin center distance: 100mm note: The actual product may have slight color differences or differences, which does not affect use. Material: carbon steel colour: Black Package Contents: 48 x Scroll Saw Blade Pin End(15 teeth bending/15 teeth/18 teeth/24 teeth) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.