Point iron

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A forged point iron.
Traces of pointed iron on a sandstone .

The point chisel is a point chisel made of tool steel with a specially hardened point. This tool is used for both hard and soft stone . The chisels for soft rock has a Knüpfel - and one for hard rock Fäustelkopf . When working with stones, it is primarily used to work off the bosses (stone masons speak of bosses) and to level the surface to be worked on. However, it can also be used to design visible surfaces. There are different degrees of editing, from rough Bossieren to fine tips.

In the case of forged point irons, the material to be processed determines the hardness of the point. This can be set using the temper colors during forging . There are also point irons with hard metal inserts. Pointed irons are usually made of octagonal or round steel rods, with thicknesses between 10 and 22 mm, and lengths of 160 to 280 mm. They are usually driven with a mallet or a club , but mainly with pneumatic hammers for hard rock .

The " dog's tooth " used by stonemasons is a special pointed iron with two points that is used to work off extremely soft soft stone, since the pointed iron with one point would otherwise get stuck in the soft stone.

A special form of pointed iron is called a bossing iron. It is a slightly larger pointed chisel that is used to sharpen large protruding stones, which used to be mainly in quarries.

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