V-Blocks 磁性塊

The magnet holds my 2" steel shaft rock solid while I scribe center lines, and having both a flat and V-base means it sits stable on the mill table too. Way quicker than clamping everything down.

Wasn't sure I needed a magnetic base until I used this to hold a shaft steady for checking runout — night and day versus clamping it in a vise. The V-groove seats round stock without any wobble, and flipping it to the flat base for layout work takes two seconds.

The magnet grips the V-groove tight enough that my 2-inch shaft doesn't shift while I'm laying out center lines. Being able to flip it onto the flat base for odd-shaped parts saved me from dragging out a second fixture. Exactly what I needed for the drill press setup.