Whether labeled T or TX, a size 20 bit has specific engineering standards to ensure it fits the intended fastener: TORX - T, TX, E and IP. What is the difference?!
While the dimensions are identical, the prefix "T" or "TX" often depends on regional marketing or a brand's specific labeling system. difference between t20 and tx20
This is the most common shorthand for "Torx." You will see this on most standard bit sets from brands like Wiha or Wera. Whether labeled T or TX, a size 20