扳手，22-26 mm 活動扳手，ER-16

The hook profile fits perfectly into the ER-16 nut slots, and the 150mm length gives solid leverage without being clumsy. It's a simple, functional tool that does exactly what I needed for tightening collets.

I needed a precise fit for my ER-16 collet nuts, and this 150 mm length hook spanner grabs those slots perfectly. The 22-26 mm range works exactly as described, and the steel feels solid in hand.

Bought this for adjusting ER-16 collet nuts on my lathe, and it fits the 22 mm size snugly without slipping. The 150 mm length gives solid leverage without being awkward.