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Tohnichi QL-MH Torque Wrench

Specifications

SKU: Tohnichi QL-MH Torque Wrench

Tohnichi QL-MH Torque Wrench
 

Knurled metal handle version of QL model.

QL100N4-MH [Overall length 333 mm]

 

 

Application

  • Suitable for use in greasy conditions (oil, chemicals, etc.) such as garage work.

Features

  • Metal handle version of QL model
  • A clear “click” sound by internal toggle mechanism signals tightening completion upon reaching the set torque.
  • The ratchet head has 24 teeth with a 15 degree operating range, allowing for use in space-limited working conditions.
  • Torque setting is easy to adjust by knob and scale.
  • Large adjusting knob designed to enhance usability in torque setting by oily hands.
  • Except for some products, the QL-MH series is compliant with ISO 6789:2017 starting January 2022. For more information, see the technical data “Initiatives for ISO 6789:2017” at the bottom of the screen.

Specifications

Accuracy ±3%
S.I. MODEL QL2N-MH QL5N-MH QL10N-MH QL15N-MH QL25N-MH QL50N-MH QL100N4-MH QL140N-MH QL200N4-MH QL280N-MH
TORQUE RANGE
[Nใƒปm]
MIN. ๏ฝž MAX. 0.4๏ฝž2 ๏ผ‘๏ฝž5 2๏ฝž10 3๏ฝž15 5๏ฝž25 10๏ฝž50 20๏ฝž100 30๏ฝž140 40๏ฝž200 40๏ฝž280
GRAD. 0.02 0.05 0.1 0.25 0.5 1 2
METRIC MODEL 20QL-MH 50QL-MH 100QL-MH 150QL-MH 225QL-MH 450QL-MH 900QL4-MH 1400QL-MH 1800QL4-MH 2800QL-MH
TORQUE RANGE
[Kgfใƒป cm / Kgfใƒปm]
MIN. ๏ฝž MAX. kgfใƒปcm
4๏ฝž20
10๏ฝž50 20๏ฝž100 30๏ฝž150 50๏ฝž250 100๏ฝž500 200๏ฝž1000 300๏ฝž1400 400๏ฝž2000 kgfใƒปm
4๏ฝž28
GRAD. kgfใƒปcm
0.2
0.5 1 2.5 5 10 20 kgfใƒปm
0.2
AMERICAN MODEL QL15I-2A-MH QL30I-2A-MH QL50I-2A-MH QL100I-2A-MH -
TORQUE RANGE
[lbfใƒปin]
MIN. ๏ฝž MAX. 3๏ฝž15 6๏ฝž30 10๏ฝž50 20๏ฝž100 -
GRAD. 0.1 0.2 0.5 1 -
APPLICABLE BOLT COMMON STEEL M4 M5,M6 ๏ผˆM7๏ผ‰ M8 M10 M12๏ผˆM14๏ผ‰ M16 ๏ผˆM18๏ผ‰ M20
HIGH TENSION ๏ผˆM3.5๏ผ‰ ๏ผˆM4.5๏ผ‰ M6 ๏ผˆM6๏ผ‰M7 ๏ผˆM7๏ผ‰ M8 M10 M12 ๏ผˆM14๏ผ‰ M16
MAX. HAND FORCE [N] 20 50 74.1 112 155 278 393 438 500 467
DIMENSION
[mm]
EFFECTIVE LENGTH L 100 135 162 180 255 320 400 600
OVERALL LENGTH L' 160 195 226 258 333 400 489 692
SQ. DRIVE a 6.35 9.53 12.7 19.05
b 7.5 11 14 15.4 20.5
HEAD R 11.5 13 16 17 18.8 20 22.5
h 17.5 22 25.6 32 33.5 38.4 44.5
BODY m 19 25.5 28 35
n 9.2 11.2 12.2 15
d 15 20 21.7 27.2
D 25.5 26.5 36 37 46.5
WEIGHT [kg] 0.16 0.19 0.25 0.45 0.69 0.79 1.4 1.9
Notes

SI unit products (except QL2N-MH and QL5N-MH) and metric unit products (except 20QL-MH and 50QL-MH) are compliant with ISO 6789:2017 starting January 2022. Calibration Certificates will be different from older products. American unit products are not compliant with ISO 6789:2017.

Dimensions

 
โ—† How to order

[Tohnichi] [Model] Please specify.

[Example] TohnichiQL100N4-MH

 
โ—† Things to remember when ordering

Not available for inspection purposes.

 

Alternative product

PQL

Pokayoke (error-proofing)

Optional Equipment

Testers, checkers, calibration kits

DOT

TF

 

Download

Product Catalog

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Registration
 
Manuals

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Software

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Parts List

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Online Part Search System
How to Use
Features of TOHNICHI Torque Wrench

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How to set torque

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Special Torque Wrench

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Applying the correct force/Loosening tasks/Tightening left-handed bolts and screws

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[September 2025 Version] Tohnichi’s Torque Engineering Seminars, ready to provide positive results in the workplace right away.

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Differences between adjustable, preset and pre-lock torque wrenches

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Tohnichi torque product information: Automobile maintenance

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Tohnichi torque product information: Plant construction

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Tohnichi torque product information: Railroad

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Tohnichi Torque Devices for Aviation Industries

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Technical Data
4. Tightening Reliability

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5. Selection of Tightening Tools

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6. Torque Tools are Measurement Equipment

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7. Maintenance for Torque Tools

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[September 2025 Version] Everything from torque controls to Tohnichi’s Tightening Assurance System

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Initiatives for ISO 6789:2017

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