PROPER CARE OF TOOL BITS

TOOL FAILURE COVERED UNDER WARRANTY

INTERNAL MATERIAL FLAW

This failure occurs when a foreign material is rolled into the steel during the manufacturing process, causing an imperfection in the internal material flaw grain. The re- sult is an inherent weakness in the tool shank and even- tual breakage.

The fatigue failure is started by the defects within the tool bit. The broken surface exhibits a shell pattern around the starting point of failure, like that in the fatigue failure. The other parts of the broken surface are brittle.

This is the only kind of tool bit failure that is always covered under warranty.

As a rule, working steel failures can be diagnosed by looking at the break itself, and at the place on the steel where the break occurred. Discoloration, like “rainbow” effects or blue bands, is the result of extreme heat.

Look for surface cracks, galling, or gouge marks. Breaks that start as surface damage have a “sea shell” pattern, with the damaged spot at the center. A large “sea shell” indicates a slow growing break; a small one indicates one compounded by side stress.

Stress failures start small, and spread into the center of the steel. In a stress failure, the coarser the grain, the greater the stress was, and the more rapid was the failure.

•Failures in this area are usually the result of blank firing, worn bushing(s), worn re- tainer pin(s) or the lack of lubrication.

•Failures in this area are usually the result of worn retainer pin(s) or blank firing.

•Failures in this area are usually the result of prying, metal-to-metal contact or corro- sion. Prying failures often exhibit a shell- like formation near the edge of the steel diameter where the break began, and a “tail” opposite that where the remaining steel bent and tore.

•Failures in this area are usually the result of heat build-up, mushrooming, or improp- er contact with the work.

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Stanley Black & Decker MB05 user manual Tool Failure Covered Under Warranty, Internal Material Flaw
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MB05 specifications

The Stanley Black & Decker MB05 is a powerful and versatile tool that caters to the needs of professionals and DIY enthusiasts alike. Designed for robust performance, this model exemplifies the company’s commitment to innovation and quality.

One of the main features of the MB05 is its sturdy construction, ensuring durability even in the most demanding work environments. The design incorporates high-quality materials that withstand heavy use, making it ideal for both industrial and residential applications. The ergonomic handle enhances comfort during prolonged use, reducing fatigue and improving user experience.

In terms of technology, the MB05 boasts a powerful motor capable of delivering high torque while maintaining efficiency. This motor enables the tool to handle a variety of tasks, from light-duty jobs to more intensive applications. Additionally, the MB05 is equipped with an advanced battery management system that provides excellent runtime and reduces charging time. The inclusion of lithium-ion battery technology further enhances performance by offering longer-lasting power and less downtime.

The MB05 features a versatile speed control mechanism, allowing users to adjust the tool's velocity according to the task at hand. This adaptability is particularly beneficial for users working on various materials, ensuring precise results every time. Moreover, the built-in LED light illuminates the work area, providing increased visibility in dimly lit spaces.

Another characteristic worth noting is the tool’s compatibility with a wide range of accessories. This versatility allows users to customize their experience and tackle diverse projects, from drilling to fastening. The quick-release chuck mechanism simplifies the process of changing accessories, saving valuable time and effort.

In summary, the Stanley Black & Decker MB05 is a robust and efficient tool designed for both professional and personal use. With its durable construction, powerful motor, advanced battery technology, adjustable speed control, and compatibility with various accessories, it represents a valuable addition to any toolbox. Users can rely on the MB05 to deliver exceptional performance and meet their diverse project needs effectively. With Stanley Black & Decker’s reputation for quality, the MB05 is an investment that promises reliability and satisfaction across various applications.
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