Sir Tools M0104 12-Point 10mm x 100mm Cylinder Head Bolt Driver Socket 1/2-Inch Drive

The Sir Tools M0104 is a specialty 12-point, 10mm head bolt driver socket engineered for professional technicians who need precise access and extended reach when removing and reinstalling cylinder head bolts. Featuring a 1/2-inch drive and a 100mm overall length, this long-reach socket is purpose-built to navigate the deep bolt wells and tight clearances commonly found in modern European and domestic engines.

Key Features:

• 12-point design for maximum engagement on 10mm head bolts
• 10mm socket size — fits standard metric cylinder head bolt heads
• 100mm overall length for deep-reach access in recessed bolt wells
• 1/2-inch square drive compatible with standard ratchets, breaker bars, and torque wrenches
• Specialty tool designed specifically for cylinder head bolt removal and installation
• Provides the clearance needed to properly torque head bolts without interference

The Sir Tools M0104 head bolt driver socket is an essential addition to any professional shop performing cylinder head work. Its elongated body eliminates the frustration of inadequate tool reach, ensuring accurate torque application and efficient workflow during engine rebuilds and head gasket repairs.