The MMTB is miniature preset production torque wrench with a fixed head. The versatile wrench is available with different head configuration options, like open, box, flare, hex key and ratchet head. MMTB models are design to have one permanent head style attached to it. When the MMTB torque wrench achieves torque, the head breaks-over preventing the operator from overtorquing the fastener.

mountz MMTB

Features

"Breaks-over" when preset torque is reached eliminating overtorquing.
The break-over mechanism minimizes shock to assemblies.
Tamper-proof internal adjustment. No external adjustment scale - must be preset using a torque analyzer.
Torque Ranges from 5 ozf.in to 80 ozf.in.
One-way operation standard.
Bi-directional break and available upon request.
Small with lightweight aluminum handle (3/8" dia. x approx.- 3 1/2" overall length).

Head Styles

OE - Open End
MMTB Open End

Sizes 7/32" to 3/4"

BH - Box Head
MMTB Box End

Sizes 1/4" to 3/4"

FN - Flare Nut
MMTB Flare End

Sizes 1/3" to 9/16"

HK - Hex Key
MMTB Hex Key

Sizes 1/16" to 5/32"

RH - Ratchet Head
MMTB Ratchet Head

Sizes 1/4"

GH - Grip Head
MMTB Grip Heads

The Grip Heads are custom made; provide size information (sample preferred) and any clearance issues. Head can be used for round knurled or nonknurled nut(s) where gripping to tighten might damage the surface. Typically, for odd sizes and with no flats for a wrench head to grip. Also, can be used to tighten certain tube shapes that wouldn’t collapse under torque pressure.

(additional sizes and special heads available)

Ordering Guide

There are two torque range models available:
8 ozf.in - 39 ozf.in
40 ozf.in - 80 ozf.in

Example:

Specify your requested pre-set torque:
10 ozf.in (Pre-set torque can be set from 8 ozf.in to 80 ozf.in)
Specify head:
OE (Open Head)
Specify size:
1/4"

Specifications

Accuracy	± 6% of setting

Downloads

Instruction Manual
PDF File

Data Sheet
PDF File

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MMTB Miniature Break-Over Wrench