Stanley Black & Decker MB656 user manual Moil, Chisel, Blunt

PROPER USE & CARE OF TOOL BITS

Stanley Breakers are available with several different types of tool bits. The most common are the moil, chisel and the blunt. Each of these working steels has its own purpose as described below:

To obtain the maximum production from the breaker, it is important to select the proper working steel. Consult your Stanley representative for assistance in selecting the proper working steel for your application.

MOIL

This is by far the most popular working steel. It is a general purpose point used to break anything from concrete to hard rock. Its pencil-type point is used to fracture the material. The tool is best where penetra- tion speed is important.

CHISEL

This style of point is used gen- erally used for trench work, where a controlled break is re- quired, and for rock breaking on materials with a definite line of cleavage. A chisel bit also works well in softer concretes where a moil might penetrate quickly, but not cause a frac- ture line.

BLUNT

This flat type of point is used to break softer material such as coal or shale. A moil or chisel will tend to punch holes in this type of material, where a flat blunt will shatter the material. It is also useful when break- ing irregularly shaped material where its broad tip makes it easier to position.

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