Saw blade (left and right teeth), with an outer diameter of 200250300350, 400450500, etc; The number of teeth is generally 28T, 36T, 40T, 48T, 54T, 60T, 70T, 72T, etc. The conventional hole diameter is 25.4, 30, 50.8, etc
Longitudinal section: the section parallel to the wood texture and the wood ray; In fact, the radial section is a special section where the chord section passes through the pith core; Generally, those with fewer teeth are selected.
Cross cut: the section perpendicular to the main axis of the trunk (or wood texture); Saw blades with more teeth (BA5 teeth) are generally selected, and their outer diameters are 255305355405, etc; The number of teeth is generally 100T or 120 teeth; Conventional aperture is 25.4 or 30, etc.