Aardwolf Stone Miter Clamp ASMC250 – Manual 90° Seam Jig for Countertop Glue-Ups

The Aardwolf Stone Miter Clamp ASMC250 is the manual version of Aardwolf's miter clamping jig. It holds two mitered pieces of granite, marble, quartz, ceramic, or porcelain at a precise 90° while the adhesive sets — finished side up, so the fabricator can see the seam and work the glue for a clean joint. Aardwolf publishes a 2 in. to 9 7/8 in. (50–250 mm) grip range for the miter clamp family.

Not the right tool for: lifting or moving stone — this is a gluing jig, not a lifting clamp, and carries no working load limit.

Key Features

• Manual operation — no battery or vacuum system to maintain
• Finished-side-up design — no flipping, seam stays visible during glue-up
• Auto-squaring mechanism aligns miters at 90°
• Coarse and fine adjustments pull seams exact and tight
• Family grip range 2 in. to 9 7/8 in. (50–250 mm)

What's Included

One ASMC250 stone miter clamp.

Who Is This For

Countertop fabricators and installers laminating mitered edges who want the Aardwolf seam jig without the powered vacuum assist.

Frequently Asked Questions

Q: How does it differ from the ABMC?
A: The ABMC adds a battery-powered vacuum that anchors the clamp to the slab; the ASMC250 does the same squaring and clamping job manually.

Q: What materials does it work on?
A: Aardwolf lists granite, marble, engineered stone, ceramic, and porcelain.

Q: Why clamp finished side up?
A: You can see the seam as the glue cures, so alignment and squeeze-out are corrected before the joint sets.