*High- Fit: This rotor is specifically designed for the HM1306 electric hammer, seamless compatibility with the original equipment, which simplifies installation and guarantees tool stability. *Efficient Material Construction: Made with high-quality copper wire and silicon steel core, this rotor minimizes energy consumption while maximizing work efficiency, contributing to a longer lifespan for your tools. * Dimensional Design: The rotor features strictly controlled dimensions that enhance balance during high-speed operations for improved operator comfort. * Build: This rotor is designed to lighten the load on the hammer, making it easier to handle during extended use and significantly reducing operator fatigue. *Enhanced Transmission Efficiency: The right-handed 8-tooth design optimizes power transmission, smooth operation and making it for demanding drilling and crushing tasks in professional construction environments. Color: Picture Color Material: Copper Package Contents: 1*13mm Electric Drill Rotor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.