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PROTO J1057M Metric Double End 12-Point Box End Wrench - Metric, Double End, 12-Point, Box End Wrenches
PROTOMetric, Double End, 12-Point, Box End Wrenches

PROTO J1057M Metric Double End 12-Point Box End Wrench

The PROTO Box End Wrench is a metric, double-end, 12-point box end wrench with a chrome finish. It features 12 mm and 13 mm head sizes, an 8 3/4 in overall length, and an offset, straight design (MPN J1057M).

SKU 3G-OTH-278549

Brand
PROTO
Item
J1057M Metric Double End 12-Point Box End Wrench
Part Number
J1057M
Category
Metric, Double End, 12-Point, Box End Wrenches
Available to Order
Also known as:J1057MPROTO
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

PROTO
Manufacturer Part Number
J1057M
Type
12 mm_13 mm Head Size, Offset, Straight
Overall Lg
8 3/4 in

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Box End Wrench is a metric, double-end, 12-point box end wrench with a chrome finish. It features 12 mm and 13 mm head sizes, an 8 3/4 in overall length, and an offset, straight design (MPN J1057M).

Frequently Asked Questions

What is the PROTO Box End Wrench J1057M used for?

The PROTO Box End Wrench J1057M is a metric, double-end, 12-point box end wrench used for tightening or loosening 12 mm and 13 mm fasteners in industrial maintenance, automotive repair, and mechanical assembly. Its offset, straight design provides clearance over obstructions, making it suitable for confined spaces.

What are the specifications of the PROTO Box End Wrench J1057M?

The PROTO Box End Wrench J1057M has a chrome finish, 12 mm and 13 mm head sizes, and an 8 3/4 in overall length. It is a metric, double-end, 12-point box end wrench with an offset, straight design. The manufacturer part number is J1057M.

Where to buy the PROTO Box End Wrench J1057M worldwide?

You can source the PROTO Box End Wrench J1057M 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 to industrial buyers globally.

How to select the correct PROTO Box End Wrench size?

To select the correct PROTO Box End Wrench, match the wrench head size to the fastener size. The J1057M fits 12 mm and 13 mm fasteners. Ensure the wrench type (12-point, offset) suits your access requirements. For metric fasteners, use metric wrenches. PROTO offers various sizes for different applications.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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PROTO Products

3G Electric supplies PROTO metric, double end, 12-point, box end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This PROTO box end wrench features a double-end, 12-point design with 21 mm and 24 mm head sizes. The offset, straight profile allows access to fasteners in confined spaces. Overall length is 13-1/2 inches. Suitable for turning metric bolts and nuts in mechanical assembly and maintenance tasks
PROTO
This PROTO box end wrench features a double-end, 12-point design with 21 mm and 24 mm head sizes. The offset, straight profile allows access to fasteners in confined spaces. Overall length is 13-1/2 inches. Suitable for turning metric bolts and nuts in mechanical assembly and maintenance tasks

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