RUKO 241200 kogelwindijzer, maat 0, M1–M4, 200 mm

RUKO 241200 is a size 0 ball tap wrench for quickly mounting and manually turning threading taps. This variant covers metric threads M1–M4 and Whitworth sizes 1/16–5/32 inch. Its overall length is 200 mm and the manufacturer lists a net product weight of 82 g. The exact variant is identified by SAP number 1000023128.

The central housing is made from die-cast zinc and the square tool connection follows DIN 10. Choose a tap within the stated size range and check that its square shank matches the wrench. The ball-shaped central mounting body sits on the straight handle used to turn the tool by hand. This article is the tap wrench itself; a threading tap is a separate cutting tool.