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The Basics in Tool Design

Whether you’re a seasoned veteran in the tool industry or just getting started, learning the basics of tool design will help you make the best use of your materials and get the job done right. With some practice, you can apply the same principles to every tool you make.

Visual reasoning

Generally, visual reasoning abilities are regarded as critical in tool design. Several researchers have identified a link between visual reasoning and creative design. However, the mechanism of visual logic remains a mystery due to the dynamic nature of human cognition.

This study introduces a brand-new technique for quantitatively describing visual reasoning. The method uses a visual reasoning model and a design ideation process to identify the task, process, and result of a visual reasoning process.

The paper describes the model’s components, discusses the method’s potential, and explains the system’s architecture. It also introduces the features of the data preprocessing and quantification processes.

Verbal reasoning

Using words to solve problems is a universal skill. But not all types of verbal reasoning are the same. While verbal reasoning may be used in most fields, it does not replace formal logical reasoning.

Argumentation is a vital part of the reasoning process. It is used to influence other members of a group. It may appear as negotiation or speculation, but it’s often the most critical part of the process.

A well-designed verbal thinking test may help you decide if an applicant is a suitable match for a specific position. It can be done in person or online. Some tests track a candidate’s time for each question. Other tests allow candidates to complete the test on their own time.

Angular edge

Angular edge in tool design is a cutting edge used to form an angle with the tool axis. This edge produces a less flat cut than a helical cutting edge.

This edge is also used to form an angle between two straight edges. This angle is called the lead angle. Typical lead angles are 60deg, 15deg, or 45deg.

The lead angle is measured parallel to the cutting edge. This angle is essential for tool design because it affects tool performance. The border can be used on cabinets, walls, and polyline-based objects. 

Axial runout

Several types of runout can be found in the rotating mechanism. Axial runout is one of them. It’s caused by the bit not being perpendicular to the surface.

The degree of runout in a system can be controlled with runout compensation. A height gauge on a reference surface makes the runout measurement. The gage variation must not exceed the runout tolerance. It may cut down on scrap and speed up collet setup.

Back taper

Adding a back taper to a tool design can eliminate the need for oversized reamed holes. When considering whether to include this function in your reamer, it’s crucial to consider the application type. A back taper generally reduces tool rigidity and aids in plunging and drilling. A back taper is also helpful in reducing the roughness of a machined surface.

The back taper is located on the outer periphery of the portion that extends from the end to the rear end of the groove. A back taper of 0.2 deg or more is desirable, but a back taper of less than 0.2 deg can also be advantageous.


Whether you are designing a gear or other heavy assembly, a simple chamfer is a valuable design element. It can prevent injuries, make objects safer for handling, and add decoration. In addition, it makes fastening easier.

Several techniques can be used to make chamfers. Utilizing a fillet tool is the best option. It works best across the edges of a part. It also helps to relieve stress.

A chamfer can be made at any angle. The correct angle is influenced by the geometry of the workpiece, as well as the gear data.


During the past few decades, various tools have been developed to help engineers and designers predict the durability of a device. It includes basic and advanced simulation programs. These programs help assess a product’s durability in initial and detailed design stages.

Typical methods for predicting the durability of a product using statistical techniques, such as life-cycle cost analysis. This approach is similar to the structural design approach. It is also based on quantitative analysis and decision-making tools. However, there still needs to be more methodological approaches for determining durability in the early design stages.