Tap Associates - Self-Locking "Jungere" Tap Extension: 5/16" (M7-M8) Diameter, 6" Length

Product Specifications:

• Verify that your Tap's Shank and Square dimensions are within the acceptable ranges for the Extension.
• Line up the Tap square corners with the Extension inner marks - See more at: https://tapextension.com/product/#sthash.hhY9UDHX.dpufLine up the 
  
  Line up the Tap Square corners with the Extension inner marks.  Tap the Square of the Extension with a soft (brass/lead) hammer or block to seat the Tap firmly.
• Square of Tap should be visible in the slot window.
• To dislodge Tap from Extension, insert the supplied drift key and tap with hammer.
• Click on the following links to view any of the featured video demonstrations: Hand Tap, Drill Press, CNC Machine