Internal Adjustable Toolholder

Set-Up Off the Machine (V-Block)

 1. Place broach into holder, measure "L" length and record.

2. Insert setting plug and scribe "L" measurement. (If setting plug is not available, using the broach is acceptable)

3. Finger tighten (2) hex nuts located on flange of toolholder then place into a V-block. Lightly snug V-block clamp.

4. Set indicator to scribed "L" line on setting plug.

5. Tape live spindle and housing together to rotate holder as one piece. Using six (6) adjusting set screws indicate holder to a maximum of .001 total indicator reading. (T.I.R.)

Final Step: Lock two (2) hex nuts; snug all six (6) set screws against studs. Recheck against possible movement, insert broach into holder, bottom it out and lock set screw.

You're ready to begin rotary broaching.

Click Here to Watch the Rotary Broaching Set-Up Video

 

Set-Up on the Machine

1. Place broach into holder, measure "L" length and record.

2. Insert setting plug and scribe "L" measurement. (If setting plug is not available, using the broach is acceptable)
 

3. We recommend grinding a flat on the shank portion of the tool holder that will correspond to the clamping bolts in your turret. This will reduce the likelihood of the holder spinning in the machine.

4. Mount the tool holder in the turret and position the holder so that the cutting portion of the broach ("L" length) is as close to the work zero point as possible.

5. Mount a magnetic base dial indicator on the chuck and indicate scribed "L" line to within .001 using the six adjustment screws. This is done by rotating the chuck, NOT the broach (using a telescoping inspection mirror is recommended).

 Final Step: Lock two (2) hex nuts; snug all six (6) set screws against studs. Recheck against possible movement, insert broach into holder, bottom it out and lock set screw.

You're ready to begin rotary broaching.