The electric engraving pen delivers precisions polishing with advanced motor technology, offering stable power output up to 20000RPM for detailed works on repairs and IC chip processing Enhanced with ergonomic nonslip grip and automatic overheat protections ensures fatigue resistant operations during extended polishing across wood, metal, and surfaces Featuring housing and interchangeable alloy polishing heads, this multi functional tool includes three adjustable settings for versatile cutting, engraving, and polishing tasks Designed for repair technicians, jewelry, and DIYer enthusiasts seeking professional control in delicate projects Tackle intricate tasks like motherboard IC chip polishing, jewelry detailing, and miniature model crafting with its compact, portable design for workshops or on site jobs, Manufacturer: LSTTBO