HOLEX torque wrench without scale without plug-in head

Version:
Single-handed torque wrench without a setting scale. Wrench setting using torque analyser. Left-hand tightening by reversing the plug-in head.
Without plug-in head (base model); see No. 657582 ? 657590 for suitable plug-in heads.
Function:
On reaching the set torque value the wrench triggers giving a "signal"(audible and perceptible) and is then immediately ready for use again.
Application:
For controlled screw tightening etc. to specified torques in batch productions.
Standard:
Geprüft nach DIN EN ISO 6789.
Cutting dataa:
Legend for drawing and formula:

l₁ = Lever length without plug-in head
l₂ = Adjusted reference dimension on the torque wrench
l₃ = Lever length including factory calibration reference dimension
l₄ = Reference dimension of the plug-in head
L = Total length of the tool
T₁ = Torque to be set
T₂ = Specified torque
Optional extras:
Adjustment wrench No. 657520.

Direction of tightening: For right and left-hand tightening
Torque measuring accuracy: ±4 %
Exchangeable tool: Plug-in head
Calibration: O6
Calibration: O7
Overall length L: 125 mm
Torque range: 2 - 12 Nm
Weight: 190 g
Socket for plug-in head: 9×12 mm