Receive Free Next-Day Delivery with Winner’s Circle | 27
BORING 
SYSTEMS
The Haas Boring System is designed for 
use with milling machines, and consists 
of toolholders, one or more extensions (if 
necessary), rough boring heads for roughing 
operations, and finish boring heads for 
finishing operations. Each boring head 
accepts cartridges that hold carbide inserts, 
which perform the cutting operation. Some 
boring heads accept a selection of different 
cartridges, expanding the range of the head. 
Collectively, the Haas Boring System can 
bore holes from 20mm to 154.1mm 
(0.787" to 6.0669").
Rough Boring heads have a twin-bore 
configuration, and are used for rough boring 
holes. They are capable of removing up to 
10% of the final bore diameter. The heads 
come in 5 sizes, but they all share the same 
characteristics. They use two cartridges that 
each hold a carbide insert. Each cartridge 
can be adjusted individually, and should be 
adjusted to the same diameter to produce 
a “two-flute” boring tool. Symmetrical 
adjustment of the two cartridges produces 
the best concentricity.
Finish Boring heads, also referred to as 
fine boring heads, are used to produce 
high-precision bored holes. The amount of 
stock removal should be limited to the size 
of the nose radius on the carbide insert. 
Also, stock removal should not be less than 
one-half of the nose radius. 
1. Finish Boring Head   |   2. Finish Boring Cartridge   |   3. Rough Boring Head   |   4. Rough Boring Cartridges   |   5. Extension Bar   |   6. Boring Head Holder
1.
2.
3.
4.
5.
6.
PULL STUD
BASIC HOLDER
OPTIONAL EXTENSION BAR
ROUGH BORING HEAD
FINE BORING HEAD
FINE CARTRIDGES
ROUGH CARTRIDGES
Explore Now

View this content as a flipbook by clicking here.