Check the listing for details. PROTO 6012 3/8" Torque Wrench Unit #3. Condition: Used, Made in United States. Listed at 85.00 USD. The PROTO 6012 3/8" Torque Wrench is a high-quality, click torque wrench designed for precision and efficiency. Made in the United States by the brand PROTO, this wrench features a 3/8 inch drive size, making it versatile and suitable for various applications. With its reliable performance and durable construction, this torque wrench is a valuable tool for any workshop or home improvement project requiring accurate torque application. Excellent condition and very clean.