RIDGID WL1200 Owner's Manual download pdf (Page 22)

How To Use Your RIDGID Wood Lathe

Woodworking Chisels and How to Use Them

The Six Commonly Used Chisel Types

Gouge Skew Parting Tool Spear Point Flat Nose Round Nose

Diameter

Approach

Circumference

Approach

Circumference

Approach

Selection Of Chisels

Better chisels have handles approximately 10-in. long, to

provide plenty of grip and leverage. Sharp tools are es-

sential for clean, easy work... buy tools that will take and

hold keen edges.

Theory Of Turning

The Two Classes of Chisels

These are: 1) Chisels intended primarily for cutting, and 2)

chisels used only for scraping. The cutting chisels are the

gouge, skew and parting tool. These are the most used.

They are commonly sharpened to a razor edge by honing

on both sides. The scraping chisels are the flatnose,

round nose and spear point. These are not honed on the

flat sides - the wire edges produced by grinding are left on

to aid in the scraping process.

Cutting and Scraping

To cut, the chisel is held so that the sharp edge actually

digs into the revolving work to peel off shavings. To

scrape, the chisel is held at a right angle to the work sur-

face, and removes fine particles instead of shavings.

Many operations require that the cutting chisels be used

for scraping; but scraping chisels are practically never

used for cutting. Scraping dulls a chisel much faster, es-

pecially the razor sharp cutting chisels. Cutting is faster

than scraping and produces a smoother finish which re-

quires less sanding. However, it is far more difficult to

master. Scraping, on the other hand, is far more precise

and easier to control.

WhenYouCanCut,andWhenYouMustScrape

There are two different approaches to the work when turn-

ing. One approach is toward a circumference of the work-

piece (for example, turning down the outer surface of a

cylinder or the inner wall of a hollow round box). In this ap-

proach, the surface being turned travels under the chisel

edge like an endless belt. The second approach is toward

the diameter of a workpiece (as when turning the face of

a faceplate turning, or the side of a large shoulder on a

spindle turning). In this approach the surface being turned

rotates like a disc under the chisel edge. Sometimes the

approach will be a combination of both.

Cutting Chisel Scraping Chisel

Cutting Scraping

Means Center Line of the workpiece

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RIDGID WL1200 Owner's Manual Page 22

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