542003 | CAT DUAL-CONTACT TAPER | POWER MILLING HOLDERS
$350.00
Chicago, USA Stock -
Canada Stock -
DCAT40-MC3/4"-4" Power Milling Holder
Specification
BoreSize:
3/4" Inch
Proj. Length:
4" Inch
Taper:
DCAT40
- US Domestic Shipping Only: We ship exclusively within the United States using UPS as our primary carrier.
- Processing Time: Orders are typically processed within 1–2 business days. Orders placed on weekends or holidays will be processed on the next business day.
- Delivery Times: Delivery times vary based on the shipping method and destination (estimates are provided at checkout). Please note that carrier delays (e.g., weather or unforeseen issues) are beyond our control.
- Costs & Methods: UPS Standard, Expedited, and Express methods are available. Shipping rates are calculated based on weight and destination at checkout.
- Tracking & Support: Tracking information will be emailed once shipped. For tracking issues, errors, or damaged/lost packages, contact us at sales@pactoolsusa.com or 262-282-2456.
Description
DCAT40-MC3/4"-4" Power Milling Holder
Accuracy
PAC Precision Tools, a CAT Dual-Contact Power Milling Holders supplier in Maine, provides enhanced rigidity through simultaneous taper and flange contact. This design increases accuracy, stability, and reduces vibration in high-load milling operations.
Dimensions

Features
- Dual contact at taper and spindle face
- Increase rigidity compared to standard CAT
- Strong anti-pull-out clamping system
- Balanced to 25,000 RPM at G2.5
- Improved cutting stability under heavy loads
- AT3 precision taper interface
- Premium hardened alloy steel construction
- Available tapers: DCAT40, DCAT50
These holders are built to maintain consistent spindle contact under extreme cutting forces. They significantly reduce micro-movements and vibration during aggressive milling machining cycles. Best for heavy roughing and production machining environments requiring superior rigidity and repeatable accuracy.
Frequently Asked Questions
1. What is a CAT Dual-Contact Power Milling Holder? â–¼
It is a holder designed to touch both the taper and the spindle face, providing maximum rigidity. This dual-contact system boosts accuracy and stability, especially during heavy milling operations.
2. Why choose dual-contact holders for power milling? â–¼
Dual-contact holders reduce tool deflection, minimize vibration, and improve cutting accuracy. They offer better repeatability and tool life compared to standard CAT holders, especially in demanding high-torque applications.
3. Do dual-contact holders work on standard CAT machines? â–¼
No, these holders are designed for CNC machines equipped with dual-contact spindle systems. Always verify spindle compatibility before purchasing.
4. Are CAT Dual-Contact holders good for high-speed and heavy-duty machining? â–¼
Yes, they are fully balanced for high-speed work and provide excellent rigidity for deep and aggressive cutting. Their enhanced connection improves precision and reduces heat during long machining cycles.
5. How do I maintain dual-contact power milling holders? â–¼
Clean both the taper and face surfaces, inspect coolant channels (if any), and ensure the clamping bore is free from debris. Proper maintenance protects both the spindle and the holder.
6. Do these holders require special pull studs? â–¼
Yes, dual-contact holders often require matching dual-contact pull studs to maintain proper spindle engagement and maximize rigidity.
7. Need help choosing a CAT Dual-Contact Power Holder? â–¼
If you require any help choosing the right CAT Dual-Contact Power Holder, you can contact us here +1 262-282-2456 or email us at sales@pactoolsusa.com.
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