The 17021 Norbar HT4 Series Hand Torque Multiplier with Anti Wind-Up Ratchet and Straight Reaction Arm, 1” Square Drive is engineered for high-torque applications where safety, control, and operator practicality are critical. Equipped with an Anti Wind-Up Ratchet, this tool offers a safer and more manageable way to apply extreme torque, helping reduce stored energy and improving control during tightening. With true torque multiplication ratios of 15.5:1 (3,000 Nm) or 26:1 (4,500 Nm), the 17021 Norbar HT4 Series Hand Torque Multiplier with Anti Wind-Up Ratchet and Straight Reaction Arm, 1” Square Drive enables users to achieve very high output torque while using a much smaller, more manageable torque wrench.

An integrated angle protractor allows convenient torque-and-angle tightening, making the 17021 Norbar HT4 Series Hand Torque Multiplier with Anti Wind-Up Ratchet and Straight Reaction Arm, 1” Square Drive ideal for applications that require both a target torque and a follow-on angle rotation. The ratcheting locking system contains the forces generated during tightening, helping make tasks easier that would otherwise be difficult, dangerous, or even impossible with conventional tools. This controlled force management significantly improves safety and practicality when working on large, critical fasteners. Built with robust construction, the 17021 Norbar HT4 Series Hand Torque Multiplier with Anti Wind-Up Ratchet and Straight Reaction Arm, 1” Square Drive is designed for long service life with minimal maintenance. It is supplied in a carrying case and includes a replacement square drive for added field readiness. Accuracy is rated at 4%, and a UKAS accredited calibration certificate can be ordered separately if required. Made in the UK, it reflects Norbars focus on industrial-grade durability and performance.

Ideal for heavy industry, energy, rail, mining, marine, and large equipment maintenance, the 17021 Norbar HT4 Series Hand Torque Multiplier with Anti Wind-Up Ratchet and Straight Reaction Arm, 1” Square Drive excels wherever high torque must be applied accurately and safely. Its especially suited to field service and shutdown work where controlled force, torque-and-angle capability, and portable high-capacity multiplication are essential.