The Whiteside 131128 Screw Type Helix Mortise Cutter w/Down Shear from Whiteside is used to create hinge mortises. Can be used in either hand held or machine routers. Has a down shear cutting design to make clean, splinter free cuts.
Cutter has a 1/4-28 internal thread size. Requires the use of a either a 1/4" or 1/2" shank Helix Mortise Arbor (#RHMA14 or RHMA12. Sold separately). 2-wing carbide tipped cutter. Whiteside Machine Company - Claremont, North Carolina.
CD = Cutting Diameter. CL = Cutting Length. OAL = Overall Length.
1-1/8" CD X 1/2" CL x 1/2" OAL