[Concave: 0.5 x Insertion Square Convex: 0.7 inches (12.7 x 19.0 mm)]
[Drive: 12.7 sq & 9.5 sq]
[12.7 sq. → 19.0 sq]
[Concave 0.37 x Convex 0.25 inches (9.5]
[Concave 0.4 x Convex 0.5 inches (9.5 x 12]
[Drive: 6.35 sq & 9.5 sq]
KTC
BA43