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Selecting The Best Cutting Wheel Profile
- Oct 27, 2018 -

Typical cutting wheels range from .030 of an inch up to 1/8th inch in thickness. 

The two most common cutting wheel profiles are Type 1, which is flat, 

and Type 27, which has a depressed center, or raised center hub.

Generally speaking, Type 1 wheels offer more versatility, 

especially when cutting profiles, corners, C channel 

or anything that requires the operator to cut up 

and over two different planes of cutting surface. 

Because the entire cutting surface is flat, 

users can use more of the wheel for cutting 

with less possibility of the raised center hub interfering with the workpiece.

Type 27 wheels, on the other hand, 

are ideal for getting into tight corners or overhangs, 

or for whenever the operator needs additional offset from the grinder to perform the cut. 

The depressed center of a Type 27 wheel provides the extra clearance sometimes needed to get the job done.
That said, an operator must be careful not to plunge too deep into the cut, 

as the raised hub can interfere with the material being cut and ultimately compromise the structural integrity of the wheel. 

For this reason, it’s most often recommended to use Type 1 cutting wheels unless the application specifically requires the additional offset provided by a Type 27 wheel.
While technique plays a major role in both the speed of the cut and lifespan of the cutting wheel, 

the main factor behind a wheel’s cutting performance is the cutting grain used.