The maintenance tool is economical and can quickly repair bolts and fastening nuts, turning rough edges into smooth edges. You don't have to spend time and money looking for hard-to-find or expensive replacement bolts. Excellent design: the deburring tool features a quick-release hexagonal handle, compatible with most equipment, allowing for quick and easy replacement. The hollow carving design helps remove debris, reduces accumulation, and aids in heat dissipation during deburring. Tip: Start with the lowest speed, gently apply pressure to remove burrs, then gradually increase the speed. Do not activate the screwdriver until the drill bit fully covers the screws or bolts to avoid control issues. Using lubricating oil can improve performance. This is a high-quality deburring chamfering tool, thread chamfering tool, and screw alloy trimming tool. It's a must-have for any DIY enthusiast or professional. []: This external chamfer tool is made of durable alloy material, sturdy and built to last. It easily shaves the outer edge of flat bolts, withstands heavy use, and offers a long service life. Color: Blue Material: Alloy Size: 20/25mm Package Contents: 2 * Deburring chamfering tools Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3cm.