TONE Cordless Nutrunner (CNB Series)

The TONE CNB Series are fully cordless battery nutrunners with built-in torque control — no power outlet, no external controller required. Five models cover 150 to 2,100 N·m, all running on the HiKOKI Multi-Volt battery platform with a 40-minute charge time. Brushless DC motor, automatic torque shut-off, and ±5% repeat accuracy make these the go-to for structural and civil bolting on sites where mains power isn’t an option. Supplied with lever socket, battery, charger, and metal case.

More Information

The TONE CNB Series brings full torque control to cordless bolting — no power outlet, no trailing leads, no compromise on accuracy. Five models cover 150 to 2,100 N·m for structural, civil, and industrial fastening anywhere on site.


Why the CNB Series

The CNB Series is the cordless counterpart to TONE’s wired GST Series — built for the same torque-regulated structural and civil applications, but completely free of power cables. The torque controller is integrated directly into the tool body, and automatic shut-off stops the tool the moment the preset torque is reached. The result is consistent, repeatable fastening regardless of operator technique, in locations where mains power isn’t available or practical.

All five models run on the HiKOKI Multi-Volt battery platform (BSL 36B18 / BSL 36A18), giving sites already running HiKOKI equipment a shared battery ecosystem. A brushless DC motor delivers efficient power across the full torque range with reduced maintenance requirements over the tool’s service life.


Key Features

  • Fully cordless — no power outlet required; work anywhere on site without managing cable runs
  • Integrated torque controller — clean tool body, no external control box
  • Automatic shut-off — stops precisely at the preset torque value every time
  • Brushless DC motor — efficient, durable, low-maintenance across the full torque range
  • Bidirectional operation — full torque control for both tightening and loosening
  • ±5% repeat tightening accuracy — consistent results under uniform conditions across all models
  • Digitorqon compatible — supports optional DTM-series digital torque verification attachment
  • HiKOKI Multi-Volt battery platform — 40-minute charge time; compatible with BSL 36B18 and BSL 36A18 batteries

Typical Applications

  • Structural steelwork and high-tension bolt installation
  • Bridge and civil infrastructure construction
  • Road construction and barrier systems
  • Rail and railway infrastructure
  • Remote or elevated worksites without reliable mains power access
  • Industrial plant maintenance

Range Overview

Model Torque Range Drive Type Typical Bolt Size
CNB30 150 – 300 N·m Lever socket (MRU) M16
CNB50 200 – 500 N·m Lever socket (MRU) M20
CNB80 350 – 800 N·m Lever socket (MRU) M22
CNB120 500 – 1,200 N·m Lever socket (HRU) M24
CNB210 1,000 – 2,100 N·m Lever socket (VRU) M30

Each model supplied with matching lever socket, battery (4.0 Ah), charger, battery cover, and metal carrying case.


📊 Specifications — TONE CNB Series Cordless Nutrunner

Model Torque Range (N·m) Drive Type No-Load Speed (rpm) Motor Weight (kg) Dimensions W×D×H (mm) Bolts per Charge (4.0 Ah)
CNB30 150 – 300 Lever socket MRU 32 Brushless DC 4.9 326 × 286 × 83 ~240 (M16 F10T)
CNB50 200 – 500 Lever socket MRU 22 Brushless DC 5.5 331 × 299 × 83 ~200 (M20 F10T)
CNB80 350 – 800 Lever socket MRU 17 Brushless DC 5.9 335 × 314 × 83 ~180 (M22 F10T)
CNB120 500 – 1,200 Lever socket HRU 10 Brushless DC 7.4 349 × 329 × 83 ~140 (M24 F10T)
CNB210 1,000 – 2,100 Lever socket VRU 5 Brushless DC 8.9 355 × 340 × 38 ~80 (M30 F10T)

Note: Compatible batteries are HiKOKI BSL 36B18 and BSL 36A18 only. Charger is not sold separately.

All models: Repeat tightening accuracy ±5% · Bidirectional (tighten/loosen) · Digitorqon compatible · Pistol-type body · HiKOKI Multi-Volt battery (BSL 36B18 / BSL 36A18) · 40 min charge time · Charger input: AC 100V 50–60Hz · Supplied with lever socket, battery, charger, and metal case


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