High quality hex L-keys are made of ProTanium® High Strength Steel by Bondhus® in USA. Longer lasting & economical alternative to VEX Robotics P/N 275-1030, 275-1031.
3/32" SAE Inch size fits VEX EDR® 8-32 standard screws
5/64" SAE Inch size fits VEX EDR® 6-32 motor screws, collars & couplers