• For lycoming engines
• For socket type nuts (internal wrenching)
• Standard 1/2" square female drive end
• Made from alloy steel forgings, heat-treated for maximum toughness.
I chose to backorder the wrenches, and Aircraft Spruce sent them as soon as they got some inventory. Very good quality wrenches. I bought these NEW from Aircraft Spruce for LESS than used ones selling on eBay. Thank you!
I purchased the two wrench set for a narrow deck O-320. Neither wrench have the clearance needed to engage the socket cylinder head bolts. They will have to be modified. Disappointed.
The 64942 has a 1/2" allen head hex, and the 64943 has a 3/8" allen head hex.