Year-End Tooling Sale · 10% off online orders with code year-end2026. Shop the sale →

Micro 100 – HBBC-135750-004 Boring Helical Back Rake

$49.75

Right Hand – 0.1225" Min Bore DIA x 0.750" (3/4) Max Bore Depth x 2.00" (2) OAL x 0.0040" Radius

Micro 100 Logo