Learn to check T.I.R. (runout)
You lose 10% of tool life
for every .0001" T.I.R. (runout)
Visit our toolholder guide for more information
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Choosing the right holder for the job is key to your success
Hydraulic Toolholder Advantages
- High holding power and rigidity in the cut
- Excellent repeatability (very accurate)
- Excellent vibration dampening characteristics
- Reduction sleeves available to fit smaller shank sizes
- Fast and easy tool changes
Hydraulic Toolholder Disadvantages
- More expensive than other toolholder types
- Mechanically complex toolholding technology
- Some manufacturer's holders are leak-prone
Hydraulic Toolholder Maintenance
- Keep bore, taper, spindle taper, and shanks clean. Dirt causes runout and premature wear
- Check clamping mechanism for smooth operation
- Replace toolholder if excessive fretting is evident
- Replace worn retention knobs to prevent toolholder from flying out of spindle during operation
What to Look For
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Leak-proof design
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Balanced to 15,000 RPM
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Taper ground to AT3 for maximum spindle contact
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Reduction sleeves to fit different shank sizes
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