<P> The pitch of the teeth can be from fourteen to thirty - two teeth per inch ( TPI ) for a hand blade , with as few as three TPI for a large power hacksaw blade . The blade chosen is based on the thickness of the material being cut , with a minimum of three teeth in the material . As hacksaw teeth are so small , they are set in a `` wave '' set . As for other saws they are set from side to side to provide a kerf or clearance when sawing , but the set of a hacksaw changes gradually from tooth to tooth in a smooth curve , rather than alternate teeth set left and right . </P>
<P> The pitch of the teeth can be from fourteen to thirty - two teeth per inch ( TPI ) for a hand blade , with as few as three TPI for a large power hacksaw blade . The blade chosen is based on the thickness of the material being cut , with a minimum of three teeth in the material . As hacksaw teeth are so small , they are set in a `` wave '' set . As for other saws they are set from side to side to provide a kerf or clearance when sawing , but the set of a hacksaw changes gradually from tooth to tooth in a smooth curve , rather than alternate teeth set left and right . </P>
what determines the number of teeth to use on a hacksaw
what determines the number of teeth to use on a hacksaw
based on the thickness of the material being cut
based on the thickness of the material being cut