Usage Tips: Revolutionize your repairs with ease. Say goodbye to tedious bolt repairs. This deburring external chamfering tool effortlessly removes burrs and restores bolts without sparks or burns. Compatible with tube sizes from 3mm to 20mm, it is a must-have for every DIY enthusiast. Safety first, repairs made simple. This deburring chamfering tool simplifies bolt repair. Attach it to your power drill, apply gentle pressure, and let it expertly remove burrs, eliminating the need for costly hardware replacements. Repairing has never been safer or more straightforward. User-friendly innovation. Designed for ease of use, the 1/4 inch hex shank and quick-release design allow fast attachment to various drills, including lithium-ion drills, hand drills, and table drills. Operate at 0–400 RPM for optimal performance. Note: Slight color variations may occur due to lighting and display differences. This does not affect functionality. Color: Black + Blue Material: Steel Package Contents: 2 x Deburring External Chamfer Tool Note: The package includes only the items listed above. Measurement error allowed is +/- 1–3 cm.