PROTO Open End Wrench: Alloy Steel, Black Oxide, 5/8 in_9/16 in Head Size
The PROTO J3030B is an SAE double-end open end wrench made from alloy steel with a black oxide finish. It features 5/8 in and 9/16 in head sizes and an overall length of 7 47/64 in.
SKU 3G-OTH-284839
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The PROTO J3030B is an SAE double-end open end wrench made from alloy steel with a black oxide finish. It features 5/8 in and 9/16 in head sizes and an overall length of 7 47/64 in.
Frequently Asked Questions
What is the PROTO J3030B open end wrench used for?
The PROTO J3030B is a double-end open end wrench used for tightening or loosening SAE hex fasteners in automotive, industrial, and mechanical maintenance applications. Its 5/8 in and 9/16 in head sizes suit common bolt dimensions, and the black oxide finish provides corrosion resistance.
What are the specifications of the PROTO J3030B wrench?
The PROTO J3030B is an SAE double-end open end wrench made from alloy steel with a black oxide finish. It has head sizes of 5/8 in and 9/16 in, an overall length of 7 47/64 in, and the manufacturer part number is J3030B. It is not a ratcheting or reversible tool.
Where to buy the PROTO J3030B wrench worldwide?
You can source the PROTO J3030B open end 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 on this alloy steel wrench.
How to select the correct PROTO open end wrench size?
To select the correct PROTO open end wrench, match the head size to the fastener's hex width. For the J3030B, use the 5/8 in end on 5/8 in bolts and the 9/16 in end on 9/16 in bolts. Ensure the wrench is SAE (inch-based) for compatibility with standard US fasteners.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO sae, double end, open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
