The BOSCH 1-1/4 In. Standard Press Jaw (GPTSD125CUSS) is designed to deliver consistent, high-strength pipe connections when used with Bosch and compatible pressing tools. Whether you’re working on residential water lines, commercial plumbing, or HVAC systems, this press jaw is built to handle the job with precision and long-term durability.

Engineered from high-quality hardened steel, this 1-1/4-inch jaw is optimized for pressing copper and stainless steel fittings. It features a compact profile that’s ideal for tight spaces and overhead work. The jaw is fully compatible with Bosch press tools as well as many industry-standard pressing platforms.

It’s built to endure frequent use and resist wear, making it a dependable addition for professional plumbers and contractors.

Technical Specs

• Brand: BOSCH
• Model Number: GPTSD125CUSS
• Jaw Size: 1-1/4 inch
• Material: Hardened steel construction
• Compatibility: Bosch and select industry-standard press tools
• Application: Copper and stainless steel press fittings
• Design: Compact for use in tight or overhead spaces
• Durability: Engineered for heavy-duty, repeated use

What It’s Good For

Ideal for plumbers and mechanical contractors working on press-fitting pipe systems. Great for water supply lines, gas piping, and HVAC systems where precision and reliability matter.

Compared to Other Press Jaws

The GPTSD125CUSS stands out for Bosch-level engineering, wide tool compatibility, and a compact size that’s well-suited for confined workspaces.

Also Known As

• Bosch 1-1/4” Copper Press Jaw
• GPTSD125CUSS Standard Press Fitting Jaw
• Bosch Standard Press Tool Jaw 1.25 Inch
• Bosch Press Jaw for Copper and Steel Fittings