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The HITTO Vacuum Cup Valve Grinder Set is a specialized hand tool designed for the manual lapping and seating of engine valves. This 2-piece set is essential for ensuring a proper, airtight seal between the valve face and the valve seat in an engine cylinder head, a critical step during engine rebuild or maintenance.
Vacuum Cup Design: Features durable rubber vacuum cups on the ends. These cups temporarily adhere to the head of the engine valve, allowing the user to rotate the valve against its seat with an oscillating or rotating motion.
Secure Grip: The vacuum suction provides a secure, non-slip attachment to the valve head.
Manual Control: Enables precise, controlled grinding when used with a fine abrasive valve grinding paste.
Two-Piece Set (2pcs/pkt): The set includes two different sizes of valve grinders to accommodate the common range of valve sizes found in automotive and small engine applications.
Wooden Handle: The ergonomically shaped wooden handle provides a comfortable and secure grip for manual operation, reducing user fatigue during the lapping process.
Simple Operation: The tool is straightforward to use:
Apply a small amount of valve grinding paste to the valve face.
Attach the appropriate vacuum cup to the valve head.
Manually rotate the handle back and forth between your hands while applying light pressure to grind the valve face against its seat.
Essential for Engine Maintenance: Necessary for achieving the optimal compression and performance by ensuring a perfectly seated valve.

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