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618013 | CAT DUAL-CONTACT TAPER | END MILL HOLDERS

$130.00
Chicago, USA Stock -
Canada Stock -
DCAT40-SLN1-1/2"-4-1/2" Dual-Contact End Mill Holder
Specification
Description
DCAT40-SLN1-1/2"-4-1/2" Dual-Contact End Mill Holder

Accuracy

PAC Precision Tools CAT Dual-Contact End Mill Holders distributor in Illinois provides enhanced rigidity by ensuring simultaneous contact at the taper and spindle face. This design improves stability, reduces vibration, and increases tool life during aggressive cutting operations.

CAT Dual-Contact End Mill Holders are engineered for high-precision and high-load machining environments. Buying a CAT Dual-Contact End Mill Holders from a trusted CNC.

Features

  • Dual contact at taper and flange face
  • Increased rigidity compared to standard CAT
  • Reduced vibration in high-speed machining
  • Balanced to 25,000 RPM at G2.5
  • AT3 taper accuracy
  • Set screw locking system for secure tool retention
  • H5 bore tolerance
  • Surface roughness: Ra < 0.0005 mm
  • DCAT40 and DCAT50
  • Hardened alloy steel construction (HRC 56–58)

Frequently Asked Questions

1. What is a CAT Dual-Contact End Mill Holder?▼
A CAT Dual-Contact End Mill Holder provides both taper and face contact with the spindle, increasing rigidity and precision. This dual interface reduces tool movement and improves machining consistency.
2. What are the main advantages of dual-contact technology?▼
Dual-contact holders enhance spindle stiffness and accuracy by providing two contact surfaces instead of one. This helps achieve smoother finishes, tighter tolerances, and longer spindle and tool life.
3. Is it compatible with standard CAT spindles? ▼
No, CAT Dual-Contact holders are made for machines with dual-contact spindle systems. Always verify spindle specifications to ensure proper fit and full contact engagement.
4. How does dual-contact improve machining? ▼
It provides stronger clamping and minimizes deflection during heavy cutting. The design helps maintain precise tool alignment, even under high-speed or high-load conditions. If you want more guidance, please email us at sales@pactoolsusa.com, and we will get back to you.
5. Are CAT Dual-Contact holders balanced?▼
Yes, PAC Precision Tools’ holders are dynamically balanced for high-speed performance. The dual-contact design allows vibration-free operation and consistent accuracy over extended use.
6. What kind of maintenance do CAT Dual-Contact Holders need?▼
Clean both the face and taper surfaces after each use to avoid dust or oil buildup. Apply a light oil film to prevent rust and ensure precise seating with the spindle. For more maintenance tips, visit our Website www.pactoolsusa.com, or contact us at +1 262-282-2456. .

Features

  • AT3 Class taper accuracy for precise spindle fit
  • H5 bore tolerance for optimum surface contact with the cutting tool
  • High-precision pilot bore for improved concentricity
  • Available tapers: BBT30, BBT40, BT30, BT40, BT50, HSK63A, HSK100A
  • Balanced to 25,000 RPM at G2.5
  • The flange coolant AD+B feature is standard in all CAT holders with inch sizes
  • All corrosion-proof holders have a special rust preventive coating
  • 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 an End Mill Holder? ▼
An End Mill Holder is a tool for securely clamping a cutting tool, like an end mill, into a milling machine spindle to prevent it from rotating during use. These holders provide a more rigid and stable connection than a standard collet, especially for heavy-duty applications, by using a set screw to grip a flat, known as a Weldon shank, on the end mill’s body.
2. What are the benefits of using PACTools End Mill Holders? ▼
End Mill Holders provide excellent rigidity, reliable performance, and reduced tool slippage and vibrations. They are ideal for demanding machining operations where strength and stability are essential for maintaining precision, dimensional accuracy, and surface quality.
3. How is an End Mill Holder different from an ER Collet Holder? ▼
An end mill holder uses a set screw to push against the tool shank, which is less rigid and more prone to runout than an ER collet holder, making it suitable for less demanding applications. An ER collet holder uses a collet with a conical shape to grip the tool shank with high accuracy and a more rigid, vibration-damping grip, making it better for general-purpose and high-speed machining. End Mill Holders are better for high-torque applications, while ER Collet Holders are more versatile for lighter and varied tool sizes.
4. What sizes are available for End Mill Holders? ▼
PAC Precision Tools offers End Mill Holders in multiple taper configurations, such as CAT, BT, and HSK, to fit a wide range of CNC spindles. Each size ensures precision fit, excellent balance, and compatibility with standard tool shank diameters used in machining. And the available project length is from 1-3/4", 2", 2-3/8", 2-1/2", and more. For more info, please contact us.
5. Are End Mill Holders suitable for high-speed machining? ▼
Yes, PAC Precision Tools End Mill Holders can be suitable for high-speed machining, but it depends on the specific holder type and its quality. While traditional solid end mill holders are not recommended for high-speed machining operations due to their lack of balance, more advanced and precise holders like collet chucks, hydraulic holders(chucks), of those with high-speed tapers like HSK are well-suited for high-RPM operations
6. How should I maintain End Mill Holders? ▼
Clean the holders after every use, remove metal chips and coolant residue, and lightly oil the surface to prevent rust. Proper care maintains accuracy, improves performance, and extends the lifespan of both the holder and the spindle. For more guidance on maintenance, you can email us at sales@pactoolsusa.com.
7.Do End Mill Holders support coolant-through systems? ▼
Yes, selected models feature coolant-through capability that allows coolant to flow directly to the cutting area. This feature improves chip removal, tool life, and overall machining efficiency, especially during high-speed or deep-cutting operations
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