AmazonSquare drive as per DIN 3120 - C 12.5, Iso 1174 With ball retention groove Torn = REG. Trademark of acumen intellectual properties, LLC. USA Socket 1/2" protruding TORX E20, Weight: 0.13 Pounds, Manufacturer: Carolus
Square drive as per DIN 3120 - C 12.5, Iso 1174 With ball retention groove Torn = REG. Trademark of acumen intellectual properties, LLC. USA Socket 1/2" protruding TORX E20, Weight: 0.13 Pounds, Manufacturer: Carolus