In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called

For turning small taper on long workpiece, the suitable method is

In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness ratio is unaffected with the changed cutting conditions, the actual chip thickness will be

An open structure of a grinding wheel is denoted by the number 1 to 8.

For harder alloy steel, the point angle of the drill is kept