Strong adhesion: Equipped with a 115mm oversized suction cup for greater area and enhanced grip, effectively slipping or shifting during drilling Multi apertures compatibility: Supports holes up to 83mm in diameter with preset drill sizes (6 / 8 / 10 / 12 / 14mm) to flexibly adapt to various project requirements Lightweight and portable: compact design for easy carrying and storage, ideal for home use and outdoor DIYer projects Reinforced construction: Made from stainless steel, rubber, and for stability and good over time High precisions drilling: Features a multi functional suction cup positioning design for accurate drilling on tiles, glass, and marble surfaces, significantly improving work efficiency, Manufacturer: FGDTREE