General description Lightweight and compact, the 3pcs 2-12.5mm Drill Bit Sharpener is designed for easy portability. It features a wear-resistant corundum grinding wheel, making it perfect for sharpening iron drill bits and enhancing the performance of electric drills. The sharpener utilizes a composite cone that operates on the principle of sharp drilling, ensuring effective grinding. Technical specifications Condition: New Color: Blue Material: ABS + metal Size: 170 x 85 mm Package Contents: 3 x Blue Drill Bit Sharpener, 3 x Wrench, 12 x Grinding Wheels, 3 x Clamp Spring Measurement allowed error: +/- 1-3 cm Usage The drill bit sharpener is mainly used for grinding iron drill bits. It is not suitable for other high hardness drill bits.