Magetic Parallels Set DASQUA 150MM Length X 2.5MM Width 5 Piece
Dasqua 150mm Length X 2.5mm Width 5 Piece Premium Magnetic Parallel Set
Height tolerance is +/- 0.005mm.
Width tolerance is +/-0.01mm.
Hardness is 55-60 HRC.
Reduces the clamping time by up to 10%.
Precision ground as pairs.
Excellent in high precision work for mounting parallel components in machine vises or jigs.
When and why, would one use a Magnetic Parallel on a surface grinder?
1) when you need something absolutely dead on, take a skim cut on the parallel, eliminates any error or burr on the chuck affecting parallelism.
2) can be used a support for thin items held on edge.
3) the poles are much finer than the base chuck so for small thin work you get a better grip.