Southbend SB1020 owner manual Tooth Set, Tooth Type

For Machines Mfg. Since 8/09 O P E R A T I O N Model SB1020

Tooth Set

Three common tooth sets are alternate, wavy, and raker (see Figure 17). Each removes material in a different manner to make the kerf in the workpiece.

Alternate Wavy Raker

Figure 17. Bandsaw blade tooth sets.

Alternate: An all-purpose arrangement with teeth bent evenly left and right of the blade. Generally used for milder metals.

Wavy: Generally three or more teeth in a group that are bent one way, followed by a non-set tooth, and then a group bent the other way. Recommended for straight cuts in thin metals or thin-wall tubing.

Raker: Three teeth in a recurring group—one bent left, next one bent right, and then a non- set tooth. The raker set is ideal for most contour cuts.

Tooth Type

The most common tooth types are described below and illustrated in Figure 18. Each removes, gathers, and expels material differently.

Standard or Raker: Equally spaced teeth set at a "0" rake angle. Recommended for all purpose use.

Standard (or Raker)

Variable Pitch (VP)

Variable Pitch Positive Rake

Hook (or Claw)

Skip (or Skip Tooth)

Figure 18. Bandsaw blade tooth types.

Variable Pitch (VP): Varying gullet depth and tooth spacing, a "0" rake angle, excellent chip removing capacity, and smooth cutting.

Variable Pitch with Positive Rake: Varying gullet depth and tooth spacing, a positive rake angle, better chip formation, and aggressive cutting.

Hook or Claw: Wide gullets (round or flat), equally spaced teeth, positive rake angle, and fast cut with good surface finish.

Skip or Skip Tooth: Wide, flat gullets, a "0" rake angle, equally spaced teeth, and recommended for non-ferrous materials.

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