Micro 100 Spotting Centering Drill SPD-250-090 90 degree 1/4 inch

Description

Product Overview

The Micro 100 SPD-250-090 spotting and centering drill is a purpose‑built tool designed to meet the exacting demands of modern metalworking and precision engineering. Constructed from solid carbide, the drill bit maintains its sharpness and dimensional stability even after extended use in high‑speed applications. Its 90 degree point angle provides a clean entry point, reducing burr formation and ensuring that the pilot hole is accurately positioned for subsequent operations such as countersinking, chamfering, or thread tapping.

Measuring 2.5 inches in overall length with a 1/4 inch shank, the tool offers a compact profile that fits comfortably into standard drill chucks while delivering the rigidity required for consistent performance. The two‑flute design optimizes chip evacuation, minimizing heat buildup and extending tool life. With a flute length of 3/4 inch, the bit balances material removal efficiency with structural strength, making it suitable for a wide range of steel alloys, aluminum, and other non‑ferrous materials.

Beyond its mechanical attributes, the Micro 100 drill benefits from the manufacturer’s rigorous quality control processes. Each bit undergoes precision grinding and inspection to meet tight tolerances, guaranteeing that the geometry remains true to the specified 90 degree point angle. This level of consistency translates directly into reduced setup time for the end user, as the tool can be relied upon to produce repeatable results across multiple workpieces.

Usage

Designed for professional machinists, maintenance technicians, and hobbyist fabricators, this spotting drill excels in environments where accuracy is paramount. Whether you are preparing a workpiece for a precision bolt, creating a pilot hole for a larger drill, or performing a chamfer to remove sharp edges, the 90 degree point angle ensures that the entry is centered and the surrounding material is minimally disturbed. Its compact size allows it to be used in confined spaces, such as inside engine blocks, gear housings, or aerospace components, where larger tools cannot reach.

The drill’s solid carbide composition makes it resistant to wear when working with hardened steels, stainless steels, and other tough alloys. Users can confidently employ the bit in high‑speed drilling operations without fearing premature dulling. Additionally, the two‑flute configuration aids in chip clearance, which is especially beneficial when drilling deep holes or when operating in materials that generate long, stringy chips. This tool is also well‑suited for educational settings, where students can learn proper spotting techniques while handling a durable, low‑maintenance bit.

Why Choose Us

Micro 100 Tool Corporation has a long history of delivering high‑quality cutting tools that combine advanced material science with practical design. The SPD-250-090 model reflects this heritage by offering a drill bit that not only meets industry standards but exceeds them in terms of durability and precision. Our commitment to using solid carbide ensures that each bit retains its cutting edge longer than comparable high‑speed steel alternatives, reducing the total cost of ownership for our customers.

We stand behind every product with a comprehensive quality assurance program that includes batch testing, dimensional verification, and performance validation under simulated production conditions. This rigorous approach means that the drill you receive has been vetted for consistency, allowing you to trust its performance on critical jobs. Moreover, our responsive technical support team is available to assist with tool selection, usage tips, and troubleshooting, providing a level of service that adds value beyond the physical product.

Choosing the Micro 100 spotting drill also aligns you with a brand that prioritizes sustainability. Our manufacturing processes incorporate waste‑reduction techniques and energy‑efficient machining, ensuring that the environmental impact of each tool is minimized. By selecting a product that is built to last, you contribute to a greener supply chain while benefiting from a tool that delivers reliable results day after day.

Key Features

• Solid carbide construction provides long‑lasting sharpness and wear resistance.
• 90 degree point angle ensures precise entry and minimal burr formation.
• Two‑flute design enhances chip evacuation for smoother operation.
• Compact 2.5″ overall length with 1/4″ shank fits standard chucks and tight spaces.
• Backed by dedicated technical support and a comprehensive warranty.

FAQ

What materials can the Micro 100 SPD-250-090 drill safely cut?

The drill is optimized for a broad range of metals, including carbon steel, stainless steel, alloy steel, aluminum, brass, and copper. Its solid carbide tip maintains cutting efficiency even in hardened alloys, making it suitable for both general‑purpose and specialized applications where material toughness is a concern.

How does the 90 degree point angle improve drilling performance?

A 90 degree point angle creates a true, centered entry point that reduces the tendency for the bit to wander or create an off‑center pilot hole. This geometry also minimizes the formation of burrs around the hole entrance, which can save time on secondary finishing operations such as deburring or chamfering.

Can this drill be used for countersinking or is it limited to spotting?

While the primary function is spotting, the bit’s geometry and solid carbide material allow it to serve as a versatile tool for light countersinking and chamfering tasks. The two‑flute design provides enough clearance to remove material efficiently, making it a convenient multi‑purpose solution for many machining setups.

What is the recommended spindle speed for optimal results?

For most steel alloys, a spindle speed between 1,500 and 2,500 RPM yields the best balance of chip formation and tool life. When working with softer materials such as aluminum or brass, you can increase the speed up to 3,500 RPM. Always use appropriate coolant to extend tool life and improve surface finish.

Is there a warranty or guarantee on this product?

Yes, Micro 100 offers a limited one‑year warranty covering manufacturing defects. Should the drill exhibit any issues related to material integrity or workmanship within this period, we will replace it at no cost. Our customer service team can guide you through the warranty claim process quickly and efficiently.