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MTBN Break-Over Wrench


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The MTBN is preset production torque wrench with flexiblity to adapt to different applications with ability to change different head options. “Break-Over” wrenches are essential to limiting the amount of torque applied to an assembly or fastening.

Designed and manufactured to meet or exceed the accuracy and repeatability requirements of ISO 6789:2003
(Tools < 10 N.m (+/- 6% of setting):
MTBN 2 & MTBN 10
(Tools > 10 N.m are +/- 4% of setting):
MTBN 25, MTBN 65, MTBN 135 & MTBN 200

 
  • A preset production torque wrench. Breaks over upon reaching preset torque and reset automatically.
  • Tamper-proof internal adjustment. No external adjustment scale - must be preset using a torque analyzer.
  • All models are are fitted with “double positive” torque adjustment locking system to prevent tampering.
  • Compact and well balanced. Ideal for use in restricted areas.
  • Interchangeable Heads for all models are available.
  • MTBN2 & MTBN10 are ESD compliant (IEC 61340-5-1:1998).

Torque Ranges

Model Item # lbf.in N.m kgf.cm Drive Type Wt.
oz.		 Wt.
kg		 Break
 MTBN2  020314  1.8 - 18  0.2 - 2  2 - 20  Captive Pin  3.9  110 20° or 90°
 MTBN10  020315  9 - 89  1 - 10  10 - 102  Captive Pin  4.6  130 20° or 90°
 MTBN25*  020491  44 - 221  5 - 25  51 - 255  16mm Spigot  14.3  405 20°
 MTBN25*  020333  44 - 221  5 - 25  51 - 255  Dovetail  14.3  45 20°
 MTBN65*  020631  89 - 575  10 - 65  102 - 663  16mm Spigot  26.5  750 20°
 MTBN65*  020353  89 - 575  10 - 65  102 - 663  Dovetail  26.5  750 20°
 MTBN135*  020632  177 - 1194  20 - 135  204 - 1377  16mm Spigot  36.4  1030 20°
 MTBN135*  020354  177 - 1194  20 - 135  204 - 1377  Dovetail  36.4  1030 20°
 MTBN200*  020642  348 - 1764  40 - 200  400- 2028  16mm Spigot  49.4  1400 20°
Note! For MTBN Signal Output and insulated wrenches.
* MTBN 25, 65, 135 operate in single direction (clockwise).		 Dimensions

 

 

Hanging Loop for MTBN
Replace the end cap of the MTBN with a “Loop” end cap for hanging the wrench safely when it’s not being used. Sold separately.

Model Item#
MTBN2 020587
MTBN10 020587
MTBN25 020588 
MTBN65 020589 
MTBN135  020589
   
MTBN Dovetail End Fittings
The break-over wrench models with this drive type can used with Sturtevant Richmont heads.

 

Interchangeable Heads

Head options for wrenches MTBN 2 and 10 models   Head options for wrenches with 16mm Spigot end fittings (MTBN 25, 65 & 135 models
Open End
Box Head End
Flare End
Ratchet Head
Fixed Head
Blank End		   Open End
Box Head End
Flare End
Ratchet Head
Fixed Head
Blank End