CAT40 1/2” x 2-5/8” End Mill Tool Holder Balanced to 12000 RPM

Description

Product Overview

The CAT40 1/2″ x 2-5/8″ end mill holder is a precision‑engineered component designed for demanding CNC milling environments. Constructed from high‑grade hardened steel, the holder offers exceptional rigidity while maintaining a lightweight profile of just 3 lbs. Its CAT 40 taper provides a universally accepted interface for a wide range of end mills, and the shank dial of 1/2″ ensures a secure fit with minimal runout—rated at an impressive 0.0001″. The rear thread of 5/8‑11 allows for quick and reliable tool changes, reducing downtime on the shop floor. Balanced to G6.3, the holder can safely operate at speeds up to 12,000 RPM, delivering smooth cutting action and extending the life of both the holder and the mounted tool.

Usage

Designed for high‑performance metalworking, this holder excels in aerospace, automotive, and general manufacturing applications where precision and repeatability are critical. It is compatible with standard CAT40 end mills ranging from 1/8″ to 1/2″ shank diameters, making it a versatile choice for a variety of milling operations, including slotting, profiling, and contouring. The balanced design minimizes spindle vibration, which is especially beneficial when machining hard alloys or performing long‑duration cuts at high speeds. Whether you are running a 3‑axis CNC router or a 5‑axis machining center, the holder’s robust construction and tight tolerances ensure consistent tool positioning, resulting in superior surface finish and dimensional accuracy.

Why Choose Us

Our commitment to quality begins with material selection; the holder is forged from premium alloy steel and undergoes a rigorous heat‑treatment process to achieve optimal hardness and wear resistance. Each unit is inspected with laser‑based metrology to verify runout, balance, and thread integrity, guaranteeing that you receive a product that meets or exceeds industry standards. We stand behind our engineering with a comprehensive warranty and responsive technical support, ensuring that any questions about installation, compatibility, or performance are addressed promptly. By choosing this holder, you benefit from a blend of durability, precision, and ease of use that translates into higher productivity and lower total cost of ownership.

Key Features

• High‑grade hardened steel construction for long‑lasting durability
• Balanced to G6.3, allowing safe operation up to 12,000 RPM
• Ultra‑low runout of 0.0001″ ensures precise tool positioning
• Standard 5/8‑11 rear thread enables quick tool changes
• Dedicated customer support and warranty for peace of mind

FAQ

What size end mills are compatible with this holder?

The holder accepts CAT40 end mills with shank diameters from 1/8″ up to 1/2″, covering a broad range of common milling tools.

Can this holder be used on a spindle that exceeds 12,000 RPM?

While the holder is balanced to G6.3 for speeds up to 12,000 RPM, operating beyond that limit may increase vibration and reduce tool life. We recommend staying within the specified speed range for optimal performance.

Is the holder suitable for high‑speed aluminum machining?

Yes, the low runout and balanced design make it ideal for high‑speed aluminum and other non‑ferrous materials, delivering smooth cuts and consistent surface finish.

How do I install the holder on my machine?

Installation is straightforward: align the CAT 40 taper with the spindle, tighten the 5/8‑11 rear thread using the provided wrench, and verify the shank dial is set to 1/2″. A quick torque check ensures a secure fit.

What warranty does the holder come with?

We provide a one‑year limited warranty covering material defects and workmanship, backed by responsive technical support to assist with any installation or performance questions.