Tooling & Manufacturing Solution for Cordless Pen‑Type Electric Nail Drill Product Overview We deliver full‑cycle tooling and production solutions for cordless pen‑type electric nail drill, including custom injection mould design & fabrication as well as mass‑manufacture of finished manicure equipment. The finished device is assembled from a series of injection‑molded plastic parts: slender pen‑shaped main housing with anti‑slip grooves, transparent thin‑wall drill‑bit