Aviation Partners, the leading manufacturer of winglet modifications for the Boeing 757-200, 737-500 and 767-300ER aircraft, has recommended Pan American Tool as an approved vendor for our winglet installation kits. Pan American Tool stocks all the appropriate aircraft drills, reamers and countersinks for the Boeing winglet modification. Additionally, our own line of Nova quality pneumatic tools, including the Nova Compact Pistol Grip Drill, Nova High-Torque Pistol Grip Drill and Nova High-Torque Compact 90º Drill, will ably assist any aviation mechanic with the winglet modification. Pan American Tool also stocks winglet installation kits for other aircraft models, which are available upon request.