Threading

Use the Threading page to control how to create a threaded hole.

Note: This page is available only if you select a Cycle type of Thread milling or External thread on the main Drilling page.

Number of passes — Enter the number of cuts. The following example compares one pass to three passes:

Allowance — Enter the distance between successive passes.

Lead — Select the type of lead. The Lead in is a straight line in the plane normal to the hole axis followed by a helix, using the thread pitch. The Lead out is the reverse of this. All the options have the same straight line portion, but varying helical lead length.

Thread — Select whether you want a Right hand or Left hand thread. The Thread combines with the Direction (on the main drilling page) to give a cut direction.

	Right hand thread	Left hand thread
Climb	Clockwise, downwards	Clockwise, upwards
Conventional	Counter-clockwise, upwards	Counter-clockwise, downwards

Note: You can create a thread milling toolpath in a tapered hole.