$25.20
See if it's really the one
Search with this product to compare it, find similar styles, or turn up something better before deciding.
Specifications Item Number 21003-90 Item Description CAT40 MAS Retention Knob 90° 5/8-11 thread Taper CAT40 Features MAS Body Dia .512" Weight 0.2 Thread 5/8-11 Overview **All images are representative images. Verify specifications before placing orders.**
Have a question about this?
We currently ship within the US, with more countries coming soon.
Final cost and dates are confirmed at checkout.
🇺🇸 Ship from USA · On Agora since 2026
$25.20