The Bondhus 13901 is a .035-inch hex tip key L-wrench in extended long-arm geometry finished with ProGuard for rust resistance. The long shaft reaches recessed precision fasteners that standard short-arm keys can’t engage — useful for inset hardware on electronics, optical equipment, and machinery panels.
Use it for deep-set socket-head screws on miniature equipment, instrumentation panels, eyewear with recessed hinge screws, and small-format hobby builds. The .035-inch tip is precision-ground and the ProGuard finish keeps the small shaft from corroding in a damp drawer.
Bondhus has been making American hex keys at its Monticello, Minnesota facility since 1964.
