It has a 1/4" hexagonal drive

This tool from BAHCO is a half-round needle file: Needle Half-Round File Smooth Cut Unhandled 160 mm (SKU 2-304-16-2-0)

Note: Version 05006100001 listed as without Lasertip in manufacturer's overview

The product dimensions are given as 25 x 7 x 6 mm (LxWxD) and the weight per packaging unit is 4 g

Product Series: LT (LT H stated in manufacturer text)

Bit serie 4 pozidriv TORSION 1/4": PZ1x50mm MIL57981101111 It has a 1/4" hexagonalProduct Overview The Wera 05060055001 is an 855 4 TH Pozidriv (PZ1) bit with a blade length of 50 mm and a 1 4" hexagon drive. The product is stated as extra hard and comes with a torsion zone which, according to the manufacturer, dissipates peak torque loads to reduce premature wear. Design and Function The bit, Wera 05060055001, is designed as a TH bit (torsion bit). The torsion zone is integrated into the shaft to absorb short term peak torque