Grizzly G0554Z owner manual Thread Dial

To use the thread dial chart (see Figure 65), find the TPI (threads per inch) on the chart that you want to cut, then reference the dial number to the right of it. The dial numbers indicate when to engage the half-nut for a specific thread pitch.

Note: The thread dial chart can also be found on the front of the thread dial housing.

THREAD DIAL

	T.P.I		DIAL
4	5	6
7	8	9
10	11	12
13	14	16
18	20	22
23	24	26	1-4
28	32	36
40	44	46
48	52	56
64	72	80
88	92	96
104	112
	4-1/2	5-1/2	1 or 3
	6-1/2	1-1/2
		5-3/4	1

Figure 65. Model G0554Z thread dial chart.

Model G0554Z (Mfg 01/09+)

For example, to cut a TPI of 11, engage the half- nut when the thread dial points to any number between 1 and 4. To cut a TPI of 4⁜1⁄2, engage the half-nut on 1 or 3.

To maintain accuracy and consistency, engage the half-nut on the same thread dial number for each pass. Failure to start on the same number each time may lead to cutting off the thread made in the previous pass.

Note: The thread dial is not used when cutting metric threads. Leave the half-nut engaged from the beginning until the threads are complete.

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