Knurl TPI

[ddickey]

Is a 16 TPI a good general purpose knurl or is it too course?

 

[benmychree]

Most knurls are made to diametral pitch, not TPI; DP knurls are best for nominal inch diameters, TPI knurls are best for odd sizes. 16 TPI sounds too coarse for most work, to me, I'd think perhaps 20 or so would be more appropriate.

 

[darkzero]

It depends on the diameter of the workpiece. General purpose for me is 21 TPI & I use 40 TPI for fine. I don't like coarse knurls too much. But most of my knurling is between 1/2" & 1". I can post examples when I get home if you'd like.

16 TPI might look ok on diamters say larger than 1.25" but it's also personal preference on the type of knurl you want.

 

[ddickey]

Thanks guys.