Aluminum requires roughly 50–60% of the clamping force needed for steel due to lower shear strength. A 6" vise with 12,000 lbs force suits most aluminum work; hardened steel and cast iron demand the full capacity. Exceeding safe limits risks jaw slippage or workpiece fracture. Consult material specifications and part geometry.

Fixed vises offer maximum rigidity and repeatability—ideal for high-precision, high-volume work. Swiveling bases (like Baileigh's model) sacrifice slight rigidity but enable compound angles, tilted cuts, and versatile part orientation. Choose fixed for production; swivel for job shops requiring flexibility across diverse part geometries.

Check jaw parallelism monthly using a precision straightedge or dial indicator. Replace worn soft jaws or reharden hardened jaws if play exceeds 0.002". Keep dovetail slides clean and lightly oiled. Grizzly and Baileigh vises with hardened bodies withstand years of shop abuse; Grizzly Industrial models target budget-conscious users accepting slightly lower precision retention.

No. Jaw width limits contact area; oversized parts cannot clamp evenly, causing jaw deflection, slippage, and inaccuracy. Exceeding jaw width also unbalances load distribution, potentially damaging the vise body. The Baileigh 7.5" model accommodates larger parts. Always match workpiece width to vise capacity.

Double-clamp vises (like Grizzly T10066) use two independent clamp screws, providing balanced pressure and reduced jaw deflection under extreme load. Single-clamp designs are simpler and lighter but concentrate force at one point. Double-clamp suits precision work and heavy cuts; single-clamp suffices for general milling and drilling.