PROTO J111012L Box End Wrench 5/16 3/8

( Brand: Proto ), ( Manufacturer Part Number: J111012L ), ( Type: Box End Wrench ), ( Assortment: Individual Wrench )

Review PROTO 5/16 Inch 3/8 Box End Wrench Long Made In Usa New

Proto J111012L 5/16 3/8 Inch Box End Wrench - Durable and Versatile Solutions for Your Mechanical Endeavors

The Proto J111012L 5/16 3/8 Inch Box End Wrench is a must-have tool for DIY enthusiasts, professional mechanics, and automotive hobbyists alike. This high-quality wrench, crafted by Proto, a trusted brand in the tool industry, offers exceptional performance and durability that makes it an indispensable addition to any tool collection.

Designed with a 3/8 inch box end and a 5/16 inch socket size, this wrench provides versatility in handling a wide range of fasteners. Its precision-machined jaws ensure a secure grip on nuts and bolts, reducing the risk of rounding or stripping them. The wrench's 12-point box end design offers 12 possible contact points with the fastener, allowing for easier access to nuts and bolts in confined spaces and providing greater torque control.

The Proto J111012L 5/16 3/8 Inch Box End Wrench is made from high-strength steel that provides superior resistance to wear and tear, ensuring long-lasting performance even under heavy-duty conditions. Its premium chrome vanadium construction guarantees a durable finish that withstands rust and corrosion, making it ideal for both indoor and outdoor use.

This wrench features a comfortable, ergonomically designed handle that provides a firm and secure grip, reducing user fatigue during extended use. The handle is cushioned with a soft-grip material, providing a non-slip grip that enhances control and precision during operation.

In addition to its robust construction, the Proto J111012L 5/16 3/8 Inch Box End Wrench is designed with a polished and streamlined appearance that complements any toolset. Its sleek design, coupled with its exceptional performance, makes it a practical yet stylish choice for both home and professional use.

In conclusion, the Proto J111012L 5/16 3/8 Inch Box End Wrench is a reliable and versatile tool that delivers exceptional performance in a wide range of applications. Its robust construction, precision jaws, and comfortable handle ensure a durable, long-lasting, and enjoyable user experience. Invest in this high-quality wrench today, and conquer your mechanical projects with confidence and ease.

Pros and Cons of buying a Proto J111012L 5/16 3/8 Box End Wrench

1. Brand Reputation: Proto is a well-known brand in the tool industry, known for its durability and quality.

2. Versatile: The 5/16 and 3/8 sizes make this wrench suitable for a variety of bolts and nuts, increasing its utility.

3. Box End Design: This design offers a higher torque capacity compared to open end wrenches, making it ideal for tightening and loosening tough bolts.

1. Price: Proto tools are generally more expensive compared to some other brands, which might be a deterrent for some buyers.

2. Size: While the versatility of the two sizes is a pro, the wrench might not fit in tight spaces where a smaller wrench would be more suitable.

3. Weight: Compared to some lighter weight wrenches, the Proto J111012L may be heavier, which could potentially cause fatigue during prolonged use.

The Proto J111012L 5/16 3/8 Box End Wrench is a high-quality tool suitable for a variety of applications. Its durability and versatility make it a valuable addition to any tool collection. However, its price and weight might be a concern for some users.

If you're looking for a reliable, high-quality wrench and are willing to invest in a more expensive tool, the Proto J111012L could be a great choice. If price or weight are a concern, consider exploring other brands or wrench designs that might better suit your needs.

Details:

PROTO J111012L 5/16 -3/8 Box End Wrench 9 Long Made in USA NEW, never used, but may be a couple of small scratches from handling.

part #: j111012l prices

• $46.99-$67.50

specifications wrenchtooliz:

• brand: Proto
• mpn: J111012l
• type: Box End Wrench
• assortment: Individual Wrench

returns wrenchtooliz:

• policy: No Returns

general wrenchtooliz:

• Light Equipment Tools > Hand Tools > Wrenches
• condition: New Open box

shipping wrenchtooliz:

• transit: 5-12 Days
• class: Standard
• service: USPS Ground Advantage
• type: Calculated
• carrier: USPS
• cost: $8.14

offer wrenchtooliz:

• availability: In Stock
• best offers: True
• quantity: 1
• started: November 29, 2025
• options: Ship-to-home
• sold: 0

payments wrenchtooliz:

• credit card: Diners-club
• wallet: Apple-pay
• other

seller wrenchtooliz:

• city: Virginia Beach, Virginia
• # reviews: 702
• rating: 100.0%

Proto J111012L Is Similar To:

• 2443 Proto Wrench Set 2443 (31.9% similar) See pictures. Size of wrenches are 3/8 x7 16, 1/2 x9 5/8 X11 11 16 x 13 7/8 x3 4, 15 16X1. New, never been used...(February 12th, 2017)
• 4961 4961 Proto Torx L-wrench Set (31.7% similar) T10, T15, T20, T25, T27, T30, T40, T45, T50, T55 used sparingly made in the us. Wrenches in fine condition. Like new condition - Proto TRX L-WRENCHES1 set of 10 in a plastic POUCH1 ea...(September 11th, 2017)
• An-8505-17 An-8505-17 Proto Usa 1 5-16 (18.9% similar) Excellent usable Proto an usa thin open end appliance wrench. Satin plated with some minor scratches and discoloration, but no nicks dings or hammer marks. Proto an usa thin open end appliance wrench used...(October 5th, 2017)
• 05726m Proto Challenger Open End Wrench Chrome Vintageusa (41.9% similar) New vintage double open end wrench 19MM x 17MM metric Proto challenger 05726M chrome usa. Wrapped in original bar coded clear plastic packaging. Absolute mint condition...(April 1st, 2018)
• Proto Double Wrench 16 3075 Open 1-11 1-13 Prices (36.7% similar) Multiple lots can be combined to save on shipping. I encourage buyers to ask questions before buying. This item is in like new condition...(May 26th, 2015)
• 7 16 Proto 13 8 Box Offset 1026-500 12pt. (29.6% similar) Look at pictures before buying. Used, minimal scratches and scrapes from normal use...(February 13th, 2015)
• 102h Proto Tac Ratcheting Refrigeration Wrench Drive Free Shipping (31.6% similar) This listing is for one of the two shown Proto specialty wrenches. Good used condition on both, first purchaser will get the slightly smoother working one, although both do work. Only applies to listings that are free shipping. Made in usa. Confirm that everything shown is what you want...(November 18th, 2018)
• 1077m Proto Professional Mm Point Polish Chrome Offset Box Wrench (34.8% similar) Proto 1077M offset box wrench 12 pt 30-27MMIN like new condition, may have some very light scratches free shipping...(December 28th, 2018)
• 1079m Proto Professional Chrome Double Box End Wrench (41.7% similar) ...(October 16th, 2018)
• 1100k Proto Professional Rm Pc Sae Double Box End Wrench Set (44.1% similar) Please see pictures for detailed. 5 PC Proto double end box wrench set. These are used but in great shape with signs of little use. If free or flat rate domestic shipping is offered it to the lower continental us. The case does have some soling staining...(October 24th, 2018)
• 1100r Proto Professional Sae Double Box End Wrench Set Usa Made (49.2% similar) Very nice Proto double box sae 12 point wrench set no previous owners markings...(August 14th, 2018)