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BT DUAL-CONTACT TAPER | END MILL HOLDERS
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Accuracy
PAC Precision Tools BT Dual-Contact End Mill Holders offer enhanced spindle interface stability through taper and face contact. This dual-contact design increases rigidity and minimizes spindle deflection under heavy loads.
Dimensions
Features
- Dual contact at taper and spindle face
- Improved rigidity and cutting stability
- Reduced spindle deflection
- Available in DBT30, DBT40, and DBT50 tapers
- Secure Weldon flat set screw locking system
- H5 bore tolerance for optimal tool contact
- Balanced to 25,000 RPM at G2.5
- Standard AD+B flange coolant feature on all dual-contact holders
- Holder taper designed for dual-contact spindles
- Corrosion-proof construction with a special rust-preventive coating
- AT3 class taper accuracy
- H5 bore tolerance for optimum contact with the cutting tool
- Hardness: HRC 56–58
- Carbon depth: 0.8 mm ± 0.2 mm
- Surface roughness: Ra < 0.005 mm
- Crafted from case-hardened alloy steel
Frequently Asked Questions
1. What is a BT Dual-Contact End Mill Holder?
It’s a precision BT Dual-Contact End Mill Holder designed for BT spindles that use both face and taper contact, providing a stronger and more rigid tool connection for precision machining.
2. What are the advantages of PACTools BT Dual-Contact holders?
These are the benefits of PACTools BT Dual-Contact holders: they reduce vibration, increase stiffness, and deliver higher accuracy at high cutting speeds. The dual-contact surface also enhances tool life and cutting consistency.
3. Are BT Dual-Contact holders compatible with all BT spindles?
No, they’re designed for machines that specifically support dual-contact systems. Check your spindle type to ensure compatibility before use, or you can contact PAC Precision Tools for needed guidance.
4. How does the dual-contact system help?
It improves spindle-to-holder connection, ensuring precise alignment, less wear, and better surface finishes during production.
5. Are they balanced for high-speed machining?
Yes, all PACTools BT Dual-Contact holders are dynamically balanced, allowing smooth performance even at very high RPMs.
6. Do they require special pull studs?
Yes, they use specially designed pull studs for proper face contact, ensuring the highest rigidity and safety.
7. How should I store PACTools BT Dual-Contact holders?
Store them in a clean, dry place using holder racks. Avoid dropping or stacking to prevent scratches that could affect contact precision, and always look for debris or dirt before using. If you need more information on storing and maintenance, please contact us.
Quick Link
- Tool Holders
- ER Collet Holder
- ER Collet Holders-CAT Taper
- ER Collet Holders-CAT(DCAT) Dual-contact
- ER Collet Holders-BT Taper
- ER Collet Holders-BT(DBT) Dual-contact
- ER Collet Holders-HSK Taper
- End Mill Holders
- End Mill Holders - CAT Taper
- End Mill Holders-CAT(DCAT)Dual-contact
- End Mill Holders-BT Taper
- End Mill Holder-BT(DBT)Dual-contact
- End Mill Holder-HSK Taper
- End Mill Holders-Set Screw And HSK Coolant Tube
- Hydraulic Holders
- Hydraulic Holders-CAT Taper
- Hydraulic Holders-BT Taper
- Hydraulic Holders-HSK Taper
- Hydraulic Holders-BT(DBT)Dual-contact
- Hydraulic Holders-CAT(DCAT)Dual-contact
- Hydraulic Cuck/Holders-ER Type
- Hydraulic Holders Straight Shank
- Face Mill Holders
- Face Mill Holders-CAT Taper
- Face Mill Holders-CAT(DCAT)Dual-contact
- Face Mill Holders-BT Taper
- Face Mill Holders-BT(DBT)Dual-contact
- Face Mill Holders-HSK Taper
- Face Mill Holders-Lock Screw and HSK Coolant tube
- Drive Key For Face Mill Holders
- Shrink Fit Holders
- Shrink Fit Holder-CAT Taper
- Shrink Fit Holder-CAT(DCAT)Dual-contact
- Shrink Fit Holder - BT Taper
- Shrink Fit Holder - HSK Taper
- Heavy Duty-Shrink Fit Holder Cool-Blast-Metric Sizes
- Power Shrink Fit Holders Cool-Blast-Metric Sizes
- Shrink Fit Holders-Cool-Blast-And-Cool-Flange
- CAT Taper-Cool-Blast/Cool-Flange Holder
- Dual Cat Taper-Cool-Blast/Cool-Flange Holder
- HSK Taper-Cool-Blast/Cool-Flange Holder
- Shrink Fit Extension
- Screw In Type Milling Cutter
- Power Milling Holders
- Power Milling Holders-CAT Taper
- Power Milling Holders-CAT(DCAT)Dual-contact
- Power Milling Holders-BT Taper
- Power Milling Holders-BT(DBT)Dual-contact
- Power Milling Holders-HSK Taper
- Quick Change Tapping Holders
- Quick Change Tapping Holders-CAT Taper
- Quick Change Tapping Holders-BT Holder
- Quick Change Tapping Holders-HSK Taper
- Quick Change Tapping Holders-Straight Shank Tap Holder
- ER Straight Shank Holders
- ER Straight Shank Holders-Single Ended
- ER Straight Shank Holders-Double Ended
- Tooling Packages
- Integral Shank Drill Chuck-Apu Drill Chuck
- Tool Holder Blanks CAT, BT & HSK Taper
- Collets
- ER Collets
- ER Steel Sealed Collets
- ER External Coolan Collet(Jet Spray)
- ER Tap Collets
- ER Tap Steel Sealed Collets
- Reduction Sleeves for Hudraulic Chuck
- ER Floating Tap Collet
- DNA(Dead Nuts Accurate) Collets
- SK Collets
- DA Collets
- DA Sealed Collets
- TG Collets
- TG Sealed Collets
- TG Tap Collets
- OZ(EOC) Collets
- AF Collets
- Straight Collets for Milling Chucks
- ER Quick Change TAP Collets
- Quick Change Tapping Adapters(Collets)
- R8 Collets
- 5C Collets
- 16C Collets
- 3J Collets
- OZ Sealed Collets
- Tool Holders Bushings
- Type-C Bushings
- Type-CS Bushings
- Type-Z Bushings
- Boring Bar Sleeves
- Boring Bar Sleeves Neak Down Style
- Retention Knobs
- CAT Retention Knobs
- BT Retention Knobs
- CNC Live/Dead Centers
- CNC Heavy Duty Live Centers
- Interchangeble Heavy Duty Centers
- CNC Small Casing Centers
- Slimline Medium Duty CNC Live Centers
- CNC Dead Centers
- Other Accessories
- ER Nut
- ER Wrench
- Tool Locking Device
- Spindle Wiper
- HSK Coolant Tube
