Choosing the right cutter will make all the difference in the world in your assembly or repair operation. A cutter's basic materials, the method of its manufacture, the type of joint it employs, its head and shape and the type of cut are all features that differentiate one cutter from another.
The material used in the best cutters available today includes a blend of premium steel, carbon, chrome and other superior substances. This blend along with heat treating provide cutting edges with the ability to withstand greater impact and still return to their original form without damage. They cut with ease - reducing operator fatigue - and maintain inherent sharpness - providing for a consistent and satisfactory cut.
There are several methods used in the manufacture of cutters. Some are stamped, others are milled. And, some are extruded, while others are forged. The method of manufacture will determine the strength and exactness of the tool. The finest cutters are precision forged. This method allows the grain of the steel to follow the profile of the cutter - reducing breakage of the cutting edge. Precision forging also allows for automated production of consistent quality tools.
Different types of joints also determine the quality of a cutter. Lap joints and box joints that use rivets to hold the two pieces together will not hold up to most production applications because they will loosen over time, leading to misalignment of the cutting edges. Better cutters use screw joints of different designs. However, the best cutters use one flat external head and one flush head providing sufficient thread count for continuous alignment while giving a narrower profile for greater accessibility.
Your specific application will determine the correct head size and configuration. There are four primary types available:
1. The oval head combines strength and flexibility and is used in many applications
2. The tapered head allows the operator to gain access to a greater number of areas. It isn't as strong as the oval head and greater care must be taken not to damage the cutter
3. The tapered and relieved head is not only tapered on both sides, the underside is also cut away allowing greater access to difficult areas.
4. An oblique or angulated cutter has its head set at an angle to the main body and allows the operator to reach into very tight areas and is only recommend for use on thin copper wire
All of these cutting heads are available in different types of cuts. Unfortunately, due to a lack of standardization of terminology, manufacturers each offer their own descriptions and names for cuts. Hence, the application should include a consideration of the accessibility of the cut and how the lead should look after it is cut - especially if the application needs to meet military specifications. Types of cuts vary from semi-flush - leaving a large pyramid-shaped end - to lead ends that are absolutely flat, or full flush. Contact your WASSCO or Time Motion Tools representative to discuss the many brands and types of cutters available.
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