Grizzly G0717 owner manual Blade Pitch TPI, To select the correct blade pitch

Blade Pitch (TPI)

The chart below is a basic starting point for choosing teeth per inch (TPI) for variable pitch blades and standard raker set bi-metal blades/ HSS blades. However, for exact specifications of bandsaw blades that are correct for your opera- tion, contact the blade manufacturer.

To select the correct blade pitch:

1.Measure the material thickness. This mea- surement is the distance from where each tooth enters the workpiece to where it exits the workpiece.

2.Refer to the "Material Width/Diameter" row of the blade selection chart in Figure 25, and read across to find the workpiece thickness you need to cut.

3.Refer to the "Material Shapes" row and find the shape of the material to be cut.

4.In the applicable row, read across to the right and find the box where the row and column intersect. Listed in the box is the minimum TPI recommended for the variable tooth pitch blades.

5.The "Cutting Speed Rate Recommendation" section of the chart offers guidelines for vari- ous metals, given in feet per minute (FPM). Choose the speed closest to the number shown in the chart.

Material Width/Diameter							Teeth Per Inch (TPI) for Bandsaw Blades
Material Shapes
TOOTH SELECTION
mm	50		75		100		150		200		250		300		350		400		450
		5/8			4/6					3/4							2/3
		4/6		3/4				2/3						1.4/2.5					1.5/.8
			3/4				2/3				1.4/2.5						1.5/.8
inch	2	2½	3	3½	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19

Figure 25. General guidelines for blade selection and speed chart.

Model G0717 (Mfg. Since 9/10) -25-