123 Block Set

• Titanium nitride coated surface provides extra wear and corrosion resistance.
• Precision ground & heat treated to 55-62 rc.
• Parallel to .0003 on all sides; up to .0003 over allowance for nominal lapping
• Has 23 holes - 5 holes tapped 3/8-16, 18 drilled through.
• sold in pairs
• 123TC - Avenger Tin Coated 123 block set - $20.00