A Seam Setters also known as a Joint Setters is a professional installation tool used to join, align, and tighten seams between two slabs of stone or other solid surfaces. Commonly used in countertop, panel, and surface installations, Seam Setters ensure that two pieces meet seamlessly, creating a strong and visually appealing connection. Why Seam Setters Matter? When working with materials like granite, quartz, engineered stone, or glass, small misalignments can ruin the look and compromise the integrity of the installation. Seam Setters help eliminate uneven surfaces, unsightly gaps, and shifting during adhesive curing by holding the slabs tightly in place and adjusting their level until perfectly aligned. Aardwolf Joint Setters are designed to join, align, and tighten seams between stone slabs in countertop and panel installations. Suitable for stone, engineered stone, quartz, and glass surfaces, these tools help achieve flush and stable seams with minimal manual effort. BOSS (Battery Operated)Powered by a 12V rechargeable vacuum pump, BOSS includes dual vacuum bases and a quick-release valve for easy setup. It is designed for mobile work where no external power is available. EOSS (Electric Operated)Features an electric vacuum pump and a roller nut mechanism for controlled seam adjustment. Integrated leveling knobs help ensure smooth alignment across surfaces. CTTRSS1 (Manual Ratchet)A manual seam setter with a dual-action ratcheting handle for mechanical tightening. It is compact and suitable for use on fragile or lightweight slabs. Sales Format Note: – BOSS: Sold in set – two Joint Setters + battery-powered vacuum pump – EOSS: Sold in set – two Joint Setters + electric-powered vacuum pump – CTTRSS1: Sold individually (1 unit) with a plastic carrying case Features Dual vacuum pads for firm grip (BOSS & EOSS) Four leveling knobs for flush alignment Quick-release valve on BOSS and EOSS for easy vacuum release Lightweight and easy to use Suitable for stone, quartz, and glass surfaces Specifications BOSS Imperial Number of vacuum bases 2 pcs Vacuum base size 9" x 7 1/2" Net weight 32.6 lbs Gross weight 37.5 lbs Packaging dimensions L.23 5/8" x W.11 3/8" x H.11" EOSS Imperial Number of vacuum bases 2 pcs Vacuum base size 9" x 7 1/2" Net weight 34.8 lbs Gross weight 39.7 lbs Packaging dimensions L.23 5/8" x W.7 7/8" x H.11" Electric Joint Setter Max. vacuum -630 mm Hg Max. flow 23 l/min Motor rotation 1750 RPM Horsepower 1/8 HP Noise level 50 dB CTTRSS1 Imperial Net weight 13 lbs Gross weight 18 lbs Packaging dimensions L.17 3/8"xW.13 3/8"xH.6 1/4"