Keep your stud Keep your stud holes free from gravel and stone with the TRUST Stud Hole Cleaner. The easy-to-grip plastic handle offers comfort and control, while the precisely shaped tip makes cleaning quick and effortless. Benefit: ensures your studs fit securely for every ride and every performance.holes free from gravel and stone with the TRUST Stud Hole Cleaner. The easy-to-grip plastic handle offers comfort and control, while the precisely shaped tip makes cleaning quick and effortless. Benefit: ensures your studs fit securely for every ride and every performance.