UKAS 
Accredited Tool
 Calibration
 & Repair
							 
						 
							
						 
						 
							
						Design according to DIN 3129, ISO 2725-2
Machine-operated, suitable for all standard electric and air tools
Square drive as per DIN 3121 - H 25, ISO 1174
GEDORE special steel, gun-metal finish
From SW 75 mm use No. KB 3770 and No. KB 3775
* not standardised