SHARS 3/4″ Shank RH TNSR 12-3B Notch Threading & Grooving Tool Holder

Description

Product Overview

The SHARS 3/4 inch RH TNSR Threading and Grooving Tool Holder is engineered for high‑precision machining environments where reliability and repeatability are paramount. Constructed from hardened steel alloy, the holder resists wear and maintains dimensional stability even under prolonged exposure to coolant and high spindle speeds. The 3/4 inch shank conforms to standard CNC machine interfaces, allowing seamless integration with a wide range of equipment without the need for additional adapters. The insert tip length of 1.00 inch provides ample engagement surface for NG‑R and NT‑R style inserts, while the maximum depth of cut of 0.21 inch enables deep notch creation without compromising tool rigidity.

Designed with a right‑hand (RH) orientation, the holder aligns perfectly with conventional threading strategies, reducing setup time and minimizing the risk of misalignment. The compact geometry reduces overall tool length, improving balance and reducing vibration during high‑speed operations. Each unit undergoes a rigorous quality inspection process that includes dimensional verification, hardness testing, and functional trial runs to ensure that every holder meets SHARS’ exacting standards.

Usage

This tool holder excels in applications such as CNC milling, turning, and multi‑axis machining where notch threading and grooving are required. It is particularly well‑suited for aerospace component fabrication, automotive part production, and precision instrument manufacturing where tight tolerances and surface finish quality are critical. The holder’s robust construction allows it to perform reliably in both dry and wet machining conditions, making it adaptable to a variety of coolant strategies.

Operators will find the holder intuitive to install: simply secure the holder into the machine spindle, insert the appropriate NG‑R or NT‑R insert, and tighten to the recommended torque. The design ensures that the insert remains firmly seated, preventing chatter and tool deflection even during aggressive material removal. The holder’s compatibility with standard 3/4 inch shank tooling means that it can be swapped quickly between different machining operations, enhancing production flexibility and reducing downtime.

Why Choose Us

Choosing the SHARS 3/4 inch RH TNSR Threading Holder means selecting a product backed by decades of industry experience and a commitment to engineering excellence. SHARS’ manufacturing facilities employ state‑of‑the‑art CNC machining centers and heat‑treatment ovens, ensuring that each holder achieves optimal hardness and wear resistance. Our supply chain is tightly controlled, allowing us to maintain consistent material quality and on‑time delivery for customers worldwide.

Beyond the physical product, SHARS provides comprehensive technical support, including installation guidance, performance troubleshooting, and recommendations for optimal insert selection. Our after‑sales service team is available to address any concerns, and we offer a straightforward return policy for defective units, reinforcing our confidence in product durability.

Key Features

• Hardened steel construction delivers long‑lasting durability in demanding machining environments.
• Standard 3/4 inch shank ensures universal compatibility with most CNC machines.
• 1.00 inch insert tip length accommodates a wide range of NG‑R and NT‑R inserts for versatile applications.
• Maximum depth of cut of 0.21 inch enables deep notch creation without sacrificing tool rigidity.
• Dedicated technical support and rapid replacement service provide peace of mind for continuous production.

FAQ

What types of inserts are compatible with this holder?

The holder is designed for NG‑R and NT‑R style inserts, which cover a broad spectrum of carbide geometries used for threading, grooving, and profiling operations.

Can this holder be used on both milling and turning machines?

Yes, the 3/4 inch shank is a common standard for both CNC mills and lathes, allowing the holder to be mounted on either type of machine with the appropriate spindle interface.

What is the recommended torque for securing the holder?

SHARS recommends tightening the holder to a torque of 30–35 Nm (22–26 ft‑lb) to ensure optimal rigidity while avoiding over‑stress on the spindle threads.

Is the holder suitable for high‑speed machining?

Absolutely. The holder’s balanced design and hardened material allow it to operate at high spindle speeds without excessive vibration or heat buildup.

How does SHARS handle warranty claims?

All SHARS tool holders come with a one‑year limited warranty covering material defects and workmanship. Customers can contact our support team to initiate a claim, and we will provide a replacement or repair as appropriate.