Spring, 5 mm x 10 mm

My old machinist detent was losing tension; this 5x10mm spring was a perfect fit. The coil thickness feels exactly right for the application, and it seated without any need for adjustment.

Just replaced the worn one in my bench vise's detent mechanism and this 5x10mm spring fits perfectly with no trimming needed. The tension feels identical to the original part.

I was pleasantly surprised by the precision of this spring—it seated perfectly in my lathe's detent without any filing. The 5 mm x 10 mm dimensions match the original part exactly, and it feels sturdy enough for regular use in my shop.