The Delta 37-157 are Jointer Pal(TM) Knife Setting Jig for Jointers. It is Fast, safe, easy-to-use. The patented magnetic design holds knives at the correct protrusion (± .002 inch) and parallel to outside cutter head surface for accurate, fast knife adjustment or replacement in just 10 minutes. Can prolong the life of planer and jointer knives as much as five times.
Fast, safe, easy to usePatented magnetic design holds knives in proper position for easy installationAllows faster and more accurate adjustment and replacement of blades
Knife setting jig for jointers