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Home > Lathe,Drill,Mill Machine > Tool Holder > Quick Change Tool Holder > NUMOBAMS A Quick Change Single Tool Holder

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NUMOBAMS Single Quick Change Tool Holder

Name: NUMOBAMS Single Quick Change Tool Holder
Brand: NUMOBAMS
SKU: 67
Price: 60.32 USD
Availability: InStock

SKU: 67

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$410.00 ~~$430.00~~

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Description

Suit for NUMOBAMS A Type Quick Change Tool Holder

Efficiency for Precision Machining Workflows
The Numobams Quick Change Single Tool Holder is engineered to solve the most common bottleneck in miniature machining: time-consuming tool changes. Designed for the dedicated hobbyist and the professional model maker using a metal lathe machine, this accessory replaces standard fixed tool posts that require tedious shimming. By allowing users to mount cutting tools in individual holders that can be swapped in seconds, it dramatically streamlines operations involving multiple processes like facing, turning, and grooving. This component is specifically calibrated for the Zhouyu and "The First Tool" modular systems, ensuring that users can achieve industrial-style workflow efficiency on a desktop scale. It targets users who demand professional speed and convenience from their equipment.

Technical Construction and Height Adjustment
Constructed from high-density aluminum alloy, this tool holder offers the necessary structural rigidity to withstand cutting forces while remaining lightweight enough for small-scale motors. The core technical feature is its vertical adjustment mechanism. Unlike traditional blocks where center height is achieved by stacking metal shims, this holder features a knurled adjustment nut. This allows the operator to dial in the exact center height of the cutting bit relative to the spindle axis with micrometer precision. As a specialized accessory from a trusted lathe machine manufacturer, the dovetail locking interface is machined to strict tolerances, ensuring zero play when the holder is locked onto the post. This stability is critical for maintaining consistent part dimensions during repetitive batch work.

Application in Modular Machine Systems
In the broader context of modular machining, this Single Tool Holder serves as a fundamental building block for a scalable tooling system. Users typically purchase multiple units to pre-set their most-used cutting bits—one for roughing, one for finishing, and others for threading or parting. This setup transforms a standard benchtop metal lathe into a semi-automatic production unit. It is widely applied in educational settings and prototyping labs where time is a premium resource. By eliminating the setup time between operations, it allows operators to focus on the geometry of the part rather than the mechanics of the machine. This product exemplifies the commitment of top lathe machine manufacturers to bringing industrial functionality to the compact workshop environment.

Product Advantages

Shim-Free Vertical Alignment System
The primary structural advantage of this Quick Change Tool Holder is the elimination of the shimming process. On a traditional diy metal lathe, achieving the correct center height requires stacking thin metal strips under the tool bit—a process that is both frustrating and imprecise. Our design integrates a threaded vertical stop that rests on the tool post block. This allows the user to adjust the tool tip height by simply turning a thumb nut and locking it in place with a jam nut. Once set, the tool can be removed and re-inserted endlessly without losing that specific alignment. This mechanical innovation ensures that the cutting edge is always perfectly on the centerline, which is essential for facing operations and preventing the "nub" often left by off-center tools on a metal lathe machine.

Modular Expansion and Interchangeability
Designed with a modular philosophy, this holder allows for unlimited system expansion. While a standard turret holds four tools, our quick-change system allows a user to have ten, twenty, or more tools ready to go. This level of adaptability is rare among budget-friendly options from other lathe machine manufacturers. The dovetail interface is universal within the Numobams ecosystem, meaning it fits seamlessly onto our standard quick-change posts. This interchangeability protects the user's investment; as their collection of cutting bits grows, they simply add more holders rather than buying a larger machine. It allows a small benchtop metal lathe to punch above its weight class, handling complex jobs that require a diverse tooling arsenal without the need for constant tear-down and setup.

Enhanced Rigidity and Surface Finish
Despite its compact size, the structural design of the holder prioritizes rigidity. The body is machined from a solid block rather than being cast, which reduces internal porosity and increases vibration damping. When the locking lever is engaged, the dovetail wedge pulls the holder tight against the post, creating a solid metal-to-metal contact patch that resists chatter. Vibration is the enemy of surface finish, particularly on a lightweight metal lathe machine. By securing the tool bit firmly and reducing the cantilever effect, this holder enables smoother cuts and better surface finishes on materials like brass, aluminum, and mild steel. It bridges the gap between toy-like accessories and serious engineering tools, providing the stability required for high-precision turning applications.

Use Scenarios

Educational Workshops and STEM Training
In a vocational training environment, instructors use the Quick Change Tool Holder to teach students about production efficiency without the steep learning curve of shimming tools. A student operating a benchtop metal lathe can be assigned a project requiring turning, grooving, and parting. With pre-set tool holders, the student can switch operations safely and quickly, keeping the focus on machining parameters rather than tool setup. This mimics the workflow of CNC turning centers used in industry. By utilizing equipment standards adopted by professional lathe machine manufacturers, educational institutions provide a more realistic training experience. The robust design withstands the rough handling typical of beginners, making it a durable investment for school laboratories.

Rapid Prototyping for Engineering R&D
Mechanical engineers working in R&D labs often need to modify small metal components or create custom standoffs on the fly. Time is critical in these scenarios. Using a diy metal lathe equipped with these quick-change holders allows the engineer to switch from a turning tool to a boring bar instantly. For example, when fitting a prototype shaft to a bearing, the engineer can make a cut, measure, switch to a finishing tool for the final pass, and complete the part in minutes. This agility is impossible with standard clamps. The precision height adjustment ensures that even micro-tools used for delicate electronic housings are held at the exact optical center, reducing waste and ensuring the prototype meets strict geometric tolerances.

Miniature Model Making and Horology
For advanced model makers and amateur clockmakers, precision is paramount. These artisans often work with difficult materials and tiny dimensions where a tool set 0.1mm too high or low can ruin a part. The Numobams tool holder allows these users to set up a dedicated library of tools for their metal lathe machine. One holder might permanently house a 60-degree threading tool, while another holds a specialized form tool for cutting wheel teeth. When building a scale locomotive or repairing a clock mechanism, the user can swap tools with confidence, knowing the repeatability of the holder ensures the tool returns to the exact same position. This capability brings a level of sophistication to the home workshop that rivals the setups found in professional lathe machine manufacturer facilities.

About Us

Numobams is a pioneering force in the world of miniature machine tools and STEM education equipment. Since our founding, we have been dedicated to providing high-quality, modular machining solutions that bridge the gap between hobbyist enthusiasm and professional engineering. Specializing in the "Zhouyu" and "The First Tool" series, we offer a comprehensive ecosystem of machines including lathes, millers, and CNC units designed for safety and precision. Our products are trusted by makers, educators, and DIY enthusiasts across the globe who demand reliability and versatility in their creative projects.
As a specialized partner to various lathe machine manufacturers and educational distributors, Numobams focuses on innovation in small-scale manufacturing technology. We understand that a benchtop metal lathe is more than just a tool; it is a gateway to invention. Therefore, we ensure every accessory, from our machine beds to our quick-change tool holders, meets rigorous quality standards for geometric tolerance and material durability. Our team consists of technical experts passionate about machining, ensuring that we support our customers with knowledgeable service and products that truly perform. We are committed to empowering the next generation of engineers and satisfying the precision needs of today's craftsmen.
Contact our technical sales team now to upgrade your workshop capabilities!

FAQ

What is the maximum tool bit size this holder can accept?
This single tool holder is designed to accommodate standard square tool bits typically used with Zhouyu and The First Tool series lathes. It generally fits 4mm to 6mm tool shanks comfortably. Please verify your specific tool bit dimensions before purchasing.

Do I need to buy the tool post separately?
Yes, this listing is for the individual Single Tool Holder only. It is intended as an add-on for customers who already own the Quick Change Tool Post base or for those looking to expand their existing diy metal lathe tool library.

Is this holder compatible with other mini lathe brands?
It is specifically engineered for the Zhouyu/The First Tool modular system. While it may fit other similar benchtop metal lathe systems that use the same dovetail dimensions, we cannot guarantee compatibility with brands like Sherline or Unimat without modification.

What material is the tool holder made of?
The holder is machined from a high-strength aluminum alloy. This material choice balances durability with weight, ensuring it doesn't overload the carriage of a small metal lathe machine while still providing excellent vibration damping.

How does the height adjustment work?
The holder features a threaded stud with a knurled thumb nut and a locking nut. You adjust the thumb nut up or down to set the holder's vertical position on the post, eliminating the need for shims—a feature often found in high-end equipment from major lathe machine manufacturers.