This Set of 5 HSS Spare Blades is designed for use with Mini Cut-Off Parting Tool Holders on lathes. These blades are made from high-speed steel (HSS), offering superior durability and precision for parting operations. Each blade measures 1.45 x 5 x 63 mm, ensuring a perfect fit for holders with 6 mm, 8 mm, or 10 mm square shanks. Ideal for both professional and DIY machinists, these blades are perfect for replacing worn or damaged blades, maintaining consistent performance during metalworking tasks.