PROTO Combination Wrench: Alloy Steel, Black Oxide, 3 1/8 in Head Size, 34 in Overall Lg
The PROTO J12100 is an SAE 12-point combination wrench made from alloy steel with a black oxide finish. It features a 3-1/8 in head size and a 34 in overall length with an offset design.
SKU 3G-OTH-287489
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Product Description
The PROTO J12100 is an SAE 12-point combination wrench made from alloy steel with a black oxide finish. It features a 3-1/8 in head size and a 34 in overall length with an offset design.
Frequently Asked Questions
What is the PROTO J12100 combination wrench used for?
The PROTO J12100 is an SAE 12-point combination wrench designed for heavy-duty industrial bolting applications. Its 34-inch overall length and offset head provide extra leverage for loosening or tightening large fasteners in confined spaces, common in plant maintenance, oil and gas, and heavy equipment repair.
What are the specifications of the PROTO J12100 combination wrench?
The PROTO J12100 is an SAE 12-point combination wrench made from alloy steel with a black oxide finish. It has a 3-1/8 in head size and a 34 in overall length with an offset design. The manufacturer part number is J12100. These specs make it suitable for high-torque applications on large fasteners.
Where to buy the PROTO J12100 combination wrench worldwide?
You can source the PROTO J12100 combination wrench through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine PROTO tools for industrial maintenance and repair operations.
How to select the right PROTO combination wrench for heavy-duty use?
Select a PROTO combination wrench based on fastener size and torque requirements. For the J12100, the 3-1/8 in head size and 34 in length provide high leverage for large bolts. Ensure the 12-point box end fits the fastener profile. Always match the wrench size to the bolt head and consider the offset design for clearance in tight spaces.
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Common applications for PROTOPROTO Products
3G Electric supplies PROTO sae 12-point combination wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















