Flat Box Combo Set


**Prices are subject to change. Please visit store or call to confirm availability and pricing.



Columbia drywall tools are manufactured to exacting specifications through Columbia Tools’ advanced machining capabilities. The Columbia Tools Flat Box Set will allow you to complete a 2 coat finish on drywall flat seams and butt joints.


  • 1 – 10” Flat Box
  • 1 – 12” Flat Box
  • 1 – Mud Pump with Filler