Removes broken glow plug tips stuck in the cylinder head. The tap, drill bit and extractor holders are fitted to the body of the original plug and slide in for perfect centering Self-centering industrial taps with “stop-block” reduce the risk of damage to the cylinder head Size of drill bits and the shoulder of their holder prevents risk of drilling or tapping too far into the cylinder head without prior measurement, saving time and reducing damage Kit services limited clearances, making it easier to access glow plugs closest to the firewall Includes (4) easily identifiable guides & punch for flared tips, (1) punch, (1) foam grip slide hammer, (2) drill supports, (2) tap supports, (2) puller supports & (1) magnetic flex puller M8 & M10 glow plugs are the most common Works on majority of Import/Euro diesel passenger vehicles but can also work on many light trucks, medium trucks, heavy trucks and construction vehicles MAX 300 RPM for all drill bits WARNING: Cancer & Reproductive harm www.P65Warnings.ca.gov Make Model Chevrolet Silverado HD Chevrolet Kodiak GMC Sierra HD GMC TopKick GMC Savana Ford E-Series Ford F-Series Ford Excursion Ford Transit Dodge RAM 2500+ Nissan Titan XD