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Testers & scales calibrated before despatch
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Pickup available from Quicktest (WD18 8PH)
Email us or call on 01923-220206 for appointment.
Locking mechanism so that once the size is set, the prongs can't slip.
There are two pairs of prongs, approximately 3X2mm and 7X1mm.
Minimum 18mm.Maximum 42mm.