kimllier 1-1/2″ R8 Face Mill Holder 7/16-20UNF Drawbar for Bridgeport

Description

Product Overview

The kimllier 1-1/2″ R8 face mill holder is a precision‑engineered tool designed specifically for Bridgeport milling machines. Constructed from a drop‑forged alloy that has been heat‑treated to a hardness of 56‑58 HRC, the holder offers exceptional rigidity and wear resistance. The contact surface between the holder and the face mill is ground to a tolerance of .0004 inch, guaranteeing minimal runout and consistent cutting performance across the entire length of the mill. With a 7/16‑20UNF drawbar thread, the holder provides a secure, repeatable clamping method that reduces setup time and enhances safety during high‑speed machining operations.

Usage

This holder excels in applications that require flat surface machining, such as finishing of large plates, precision grinding of workpieces, and production of high‑quality flat components in aerospace, automotive, and tooling industries. The robust design allows it to handle shell end mills ranging from 4 to 5 inches in diameter, making it suitable for both small batch production and high‑volume manufacturing environments. Operators will appreciate the ease of installing and removing the face mill thanks to the double‑sided clamping key, which prevents any lateral movement during cutting. The holder’s compatibility with standard Bridgeport drawbars ensures seamless integration into existing tool setups without the need for additional adapters.

Why Choose Us

Choosing the kimllier face mill holder means selecting a product that combines rigorous engineering with practical functionality. Each holder is manufactured from high‑grade alloy steel that undergoes a meticulous forging and heat‑treatment process, resulting in a component that can withstand the demanding forces of heavy milling. The precision‑ground contact surface minimizes vibration, which translates into superior surface finish and longer tool life for the attached face mill. Our quality assurance program includes dimensional inspection and runout testing to ensure every holder meets the strict .0004‑inch tolerance specification. Additionally, kimllier provides responsive technical support and a straightforward return policy, reinforcing our commitment to customer satisfaction.

Key Features

• Precision‑ground contact surface delivers ultra‑low runout for flawless cuts.
• 7/16‑20UNF drawbar thread ensures a secure, repeatable clamping connection.
• Drop‑forged alloy construction offers high strength and long‑lasting durability.
• Compatible with 4‑5″ shell end mills, expanding versatility across many machining tasks.
• Responsive customer support and easy return process for peace of mind.

FAQ

What size face mills can I use with this holder?

The holder is designed to accommodate shell end mills ranging from 4 to 5 inches in diameter, providing flexibility for a wide range of machining operations.

Is the holder compatible with all Bridgeport models?

Yes, the holder uses the standard 7/16‑20UNF drawbar thread found on most Bridgeport milling machines, ensuring direct compatibility without additional adapters.

How does the precision‑ground surface improve machining?

The .0004‑inch runout tolerance of the contact surface reduces vibration and chatter, resulting in smoother cuts, better surface finish, and extended tool life.

What material is the holder made from?

It is forged from high‑grade alloy steel and heat‑treated to 56‑58 HRC, providing exceptional rigidity and wear resistance for demanding applications.

Do you offer technical assistance for installation?

kimllier’s technical support team is available to guide you through proper installation and answer any questions about optimal usage and maintenance.