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Robins SGM5 (also known as the SG5) is a high-precision Seat & Guide Machine manufactured by Robins, a company that has specialized in engine rebuilding technology since 1983.
It is designed for automotive engine machine shops to perform critical cylinder head reconditioning tasks with "So Genius Simple" efficiency.
- 3-Angle Seat Cutting: Cutting the intake and exhaust valve seats to precise multi-angle profiles for maximum airflow and sealing.
- Valve Guide Reaming/Honing: Machining valve guides to the correct internal diameter.
- Seat Pocket Machining: Boring out old seat inserts to install new, oversized valve seat rings.
- Threading & Tapping: Some versions (like the SG5.1) feature reverse/forward spindle rotation for easy tapping operations.