Indexable Boring Bar Accessories - Replacement Flag Keys and Screws All 3/16", 1/4", and 5/16" right and left-hand bars use AT6+ screws (for triangle or diamond-shaped inserts) All 3/8" and 1/2" bars use AT8+ screws AT6+ screws use AT6+ flag keys. AT8+ screws use AT8+ flag keys. Indexable Flag Key SCT Flag Keys are engineered for precision insert changes in all SCT indexable boring bars. Available in AT6+ and AT8+ sizes, these flag-style Torx® keys provide the torque control and grip required for consistent screw engagement and insert seating. Designed specifically to match our AT6+ and AT8+ screws, each key features a comfortable plastic handle and hardened steel tip to resist stripping and wear. Whether you're setting up a new tool or performing a quick insert replacement, SCT flag keys make maintenance easy, secure, and repeatable. Accessory Size Item # EDP# Flag Key (2-pack) AT6+ A6KEY SCI.301301 Flag Key (2-pack) AT8+ A8KEY SCI.302304 Indexable Screws (Replacement Packs) Accessory Size Item # EDP# Screws (10-pack) AT6+ A6SCREWS SCI.302307 Screws (10-pack) AT8+ A8SCREWS SCI.302310
