Urma - Command Tooling Systems

IntraMax Boring System
Setup Instructions
1.9-14” Boring (48.3-355.8)
.35-9.8” OD Turning (9-248.9)
1. After assembling the insert holders to the diameter extender, you are ready to preset the head to the desired bore
size. Leaving a slight amount of pressure on the two cap screws, use the adjustment set screw to line up the “tick
marks” on either side of the diameter extender. The insert holders adjust independently. So after adjusting each
side, use a vernier caliper to determine diameter size. Remember, if the insert holders are not equal distance from
the center of rotation, the bore produced will be oversized.
2. To verify that the insert holders are equal distance from center, the easiest method (other than using a presetter)
is to place the tool into the machine spindle. Then, using a magnetic base indicator, spin the tool to verify that the
reading is equal.
3. Once the diameter is set, tighten the cap screws on each side of the boring head.
1. After installing the insert cartridge onto the finish boring head, install the finishing head onto the diameter
extender. Before tightening the cap screws, use the rough adjustment screw to position the boring head close to
the final bore size.
2. Before turning the adjustment dial, be sure to loosen side locking set screw. Do not leave any pressure on the
locking mechanism when adjusting for size. This will decrease the life and accuracy of the adjustment mechanism.
3. After loosening the side lock set screw, turn the dial to achieve the desired diameter. The dial is in increments of
.0002” on diameter. Once you have obtained the target diameter, tighten the locking set screw before using. There
is no need to “overtighten” this set screw.
4. Now you are ready to bore a test bore. Typically, there is a need for further adjustment after the test cut due to
deflection caused by cutting pressures. If this is the case, repeat the above procedure.
The IntraMax System also allows the ability to turn outside diameters up to 3.9” on your milling machine. To set the boring
tool up, just reverse the heads. In this configuration, you can double cut rough or finish turn applications up to 2.280” long
when using the OD extension blocks. The extension blocks not only give you the extra travel, but also allow the use of the rough
adjustment mechanism to help preset the tool. Because OD turning requires the spindle to be reversed, it is required that the
Beta Modul® be used when OD turning.
Setup for
OD Turning
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