ITEM NAME:Tyre Anti-Slip Screw Stud Install Sleeve Tool fit for 6MM Car Tire Tread Stud Hf M6 Sleeve Install Mounting Tool Wheel Tyre Accessories for 6MM Car Tire Tread Anti-Slip Stud Screw SPECIFICATIONS.(M6 Sleeve Install Mounting Tool Wheel Tyre Accessories for 6MM Car Tire Tread Anti-Slip Stud Screw. How to install the tyre studs?. Suitable for: 6mm anti-slip stud screw. 3) Drill a screw up from inside-out.