AccusizeTools - Rubber Collect #4-1/4'' for Self-Reversing Tapping Head, 2600-4036 Go to amazon.com Related posts Top 9 best tapping head for 2022 FeatureRubber Collect #4-1/4'' for Self-Reversing Tapping Head, #2600-4036Tap Capacity: #4-1/4''Collets NO. I - 421Tapping Head #4 - 1/2''2600-4036