Verified 3/16-Inch Radius
The exact row combines a 3/16-inch (4.76 mm) radius with a 1-inch (25.4 mm) cutting diameter.


CMT 861.548.11 is the exact 1-inch (25.4 mm) diameter corner-beading bit with a 3/16-inch (4.76 mm) radius, 47/64-inch (18.65 mm) cutting length, 1/2-inch (12.7 mm) shank, Z2 carbide-tipped geometry, and right-hand rotation.
A carbide-tipped profile router bit for traditional beads, edge beads, and compatible molding details. The bearing-guided geometry supports controlled profile following on suitable equipment.
For compatible routing equipment accepting a 1/2-inch (12.7 mm) shank. The official row references shield 990.423.00, bearing 791.003.00, screw 990.058.00, and hex key 991.057.00.
CMT 861.548.11 is one exact Item Code in the official 7/8/961 corner-beading family. The verified variation row specifies a 3/16-inch (4.76 mm) radius, 1-inch (25.4 mm) diameter, 19/64-inch (7.54 mm) I1 dimension, and 47/64-inch (18.65 mm) cutting length.
The bit has a 2-41/64-inch (67.07 mm) overall length, 1/2-inch (12.7 mm) shank, two HW carbide cutting edges, and right-hand rotation. CMT applies its orange PTFE non-stick coating to help limit residue accumulation and protect the tool body.
CMT identifies the family for traditional beads, edge beads, and renewal of existing beads into molding details. The profile may form an edge bead or a complete corner bead when used in the appropriate professional process and compatible setup.
Technical Specifications
The exact row combines a 3/16-inch (4.76 mm) radius with a 1-inch (25.4 mm) cutting diameter.
Two carbide-tipped cutting edges provide the verified Z2 right-hand configuration.
The official row identifies the matching shield, bearing, screw, and hex-key references.
Confirm exact Item Code 861.548.11, a compatible 1/2-inch (12.7 mm) interface, and the machine and tooling limits before service. Inspection, installation, and operation should be handled by qualified personnel using suitable guarding, workholding, extraction, and the current CMT and machine instructions. Replace damaged bearing-system components only with verified compatible parts.
CMT 861.548.11 combines a 1-inch (25.4 mm) diameter, 3/16-inch (4.76 mm) radius, 47/64-inch (18.65 mm) cutting length, and 1/2-inch (12.7 mm) shank.
The Z2 HW carbide geometry, right-hand rotation, bearing guide, and serviceable spare-part system support professional corner-beading and molding work.