Grey Pneumatic supplies the world's automotive, industrial, assembly, mining, maintenance, construction and energy industries with heavy-duty, high quality impact and specialty sockets. GP sockets and tools are made using the highest quality chrome-molybdenum alloy steel and state-of-the-art manufacturing process and equipment. Through and exact heat treatment, as well as rigid quality control, ensures the correct balance of strength and durability to deliver outstanding performance at the most competitive cost.

• Used Volkswagen, Porsche, Audi, and also Detroit diesel engines
• Ideal for transmission plugs, undercarriage, differential, front axle, and caliper bolts
• Designed for professional tool users and made of high quality alloy steel
• Engineered specifically for use with impact tools
• High torque drive increases strength, makes it easier to access tight areas, and reduces wear

• M5 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21054ST
• M6 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21064ST
• M8 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21084ST
• M10 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21104ST
• M12 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21124ST
• M14 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21144ST
• M16 Extended Length Tamper-Proof Triple Square Impact Drive Socket - 21164ST
• Metal Clip Rail