• For use during removal and servicing of engine valves and seals upon cylinder head or engine repair • Supplied with 3 interchangeable adaptors of most common sizes • Suitable for small and large motorcycles • Durable fixed U-frame features strong ACME threads • Manufactured with reinforced frames from rust-proofed steel • Adaptor sizes: 19, 23 and 25mm • Jaw depth: 110mm • Jaw capacity: 20-135mm