b x s [mm]	b x s [inch]	TPI [teeth per inch] 14/18	TPI [teeth per inch]10/14	TPI [teeth per inch] 8/12	TPI [teeth per inch]6/10	TPI [teeth per inch] 5/8	TPI [teeth per inch]4/6	TPI [teeth per inch]3/4	TPI [teeth per inch]2/3	TPI [teeth per inch]1,5/2	TPI [teeth per inch]1,1/1,4*
13 x 0,65	1/2 x .025	✓	✓		✓
20 x 0,9	3/4 x .035		✓	✓	✓	✓	✓	✓
27 x 0,9	1 x .035		✓	✓	✓	✓	✓	✓	✓
34 x 1,1	1-1/4 x .042			✓	✓	✓	✓	✓	✓
41 x 1,3	1-1/2 x .050					✓	✓	✓	✓	✓
54 x 1,3	2 x .050							✓	✓
54 x 1,6	2 x .063							✓	✓	✓
67 x 1,6	2-5/8 x .063										✓

D [mm]	<5	5÷10	10÷20	20÷30	30÷50	50÷80	80÷140	140÷250	>250
TPI	14/18	10/14	8/12	6/10	5/8	4/6	3/4	2/3	1,5/2; 1,1/1,4