Williams3537M 30-Degree Service Wrench, 37 Millimeter

Top notch open end wrench with 37 mm mouth opening for many ER collet chucks for milling machines.Very good finish and extremely tough/hardened material. Tried to drill a hole in the handle so it can be hung from the wall and wasted 2 drills. Very good fit with no sloppy feel.

I like the 30degree offset for the open end slot, so it is more useful in tight spaces. It was a little more expensive than I'd like, but it is a good name brand.

Use this for vertical milling machine spindle to hold it still when tightening and loosening the draw bar. Very nice quality wrench.

Used on a BMW E30 325iX rear driveshaft nut.

Has been a good goto wrench for me for over a year now. I admit, I don’t challenge it much as I’m mostly using it on the leveling feet of CNC machinery, but it’s comfortable to hold and has held up well.

Product is well manufactured, good fit and finish. However the alloy is probably just CRV and the thin profile of the wrench makes the wrench open up and slip off the jam nut. This isn't a problem with Wright or Proto wrenched I've had in the past. Would not recommend.

Worked perfect with the slim profile on my Porsche 996

Great fit and finish

Fit great I am using on an ER32 collet chuck. Just what I was looking for thanks.