Drilling Consumables
Drill Bits
- spade and wing bits
- for wet and dry drilling
- diameter 26 to 30 mm typical
- thread shanks M16 or ½" whitworth
- or spigot shanks in small figure 8, 3/8" square or ½" x 3/8"

Drill Rods
For dry drilling – fabricated scroll or twisted scalloped type
- pinned or threaded joints available
- different drive ends to suit bolter ( 7/8" hex, square drive, etc)


