The World's Leading Drilling Technology

Numa Products

Please use drop down lists to filter products by Product Type, Hole Size, and/or Application.

Product Brochures

Sort By Hole Size

Product Type

Hole Ranges


Impact Ring Bit System®

Hole Size: 10.75 to 50.5" (273mm to 1283mm)
Bit Shank: Various

Download Product Brochure