5 Rotary Rasp bits kit for milling, filing and shaping steel in a range of applications. The bits are made from heat treated carbon steel for durability and long service life. 1/4 in hex shank (35 mm) fits standard drills for easy operation. Benefits and features Efficient metal removal and precise shaping for steel projects Durable construction that resists wear during rigorous use Wide compatibility with standard drills and drivers thanks to the 1/4 in hex shank Includes five bits designed for different surfaces and tasks, providing versatility in one pack Use scenarios Deburring and edge rounding on cut steel parts to prepare for finishing Shaping curves and contours on brackets, frames, or metal components Milling notches, flats, or internal corners in sheet or plate metal This set delivers dependable performance for fabrication, , and hobby work where steel shaping and material removal are required.