براغي رأس أسطوانية مقاس 1-14 × 1-1/2 بوصة | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي بأكسيد حراري أسود (10/عبوة)

The black oxide finish looks sharp and seems tough—installed a few in a jig today with an Allen key and the hex socket gripped perfectly. For a ten-pack, the threading was consistent on every single one, which is all I really needed.

Threads cut cleanly all the way down, and the hex socket sits perfectly flush against my driver—no wobble at all. I’ve used a handful of these on a jig and they’re holding up great under repeated tightening. Exactly what I needed for precision work.

The black oxide finish on these is exactly what I needed for a jig I’m building—they thread smoothly and seat flush without any binding. I grabbed two packs for the shop and they’ve held up perfectly under repeated torquing.