12 mm Verified Diameter
The verified 12 mm cutting diameter is paired with a 44 mm (1.7323 in) cutting edge for repeatable blind-hole dowel drilling.


Royce Ayr D125.120R is a 12 mm (0.4724 in) right-hand carbide-tipped brad-point dowel drill from the D125 family. Its verified 77 mm (3.0315 in) overall length supports precision blind-hole boring in compatible woodworking production systems.
Right Hand-hand brad-point dowel drill with a 12 mm cutting diameter and 77 mm overall length in the Royce Ayr D125 family.
For compatible CNC drill banks, CNC boring systems, and portable woodworking machines configured for the appropriate D125 shank platform and right-hand rotation.
The Royce Ayr D125.120R is a right-hand carbide-tipped brad-point dowel drill engineered for blind-hole drilling in particleboard, MDF, and solid wood. Its 12 mm (0.4724 in) cutting diameter supports repeatable dowel-hole production on compatible CNC drill banks and portable woodworking machines.
Royce Ayr lists this D125 configuration with a 44 mm (1.7323 in) cutting edge, 30 mm (1.1811 in) b1 dimension, 10 mm (0.3937 in) shank diameter, Z2 / two cutting edges, and 77 mm (3.0315 in) overall length.
Carbide-tipped construction supports long service life in production boring. Royce Ayr's industrial dowel-drill platforms use larger carbide tips and production geometry for blind-hole drilling in particleboard, MDF, and solid wood. Before production, confirm right-hand rotation, toolholder compatibility, insertion depth, runout, drilling depth, and machine parameters for the material being bored.
Technical Specifications
The verified 12 mm cutting diameter is paired with a 44 mm (1.7323 in) cutting edge for repeatable blind-hole dowel drilling.
The D125 family is configured around its verified shank geometry and 77 mm overall length for compatible production boring systems.
Carbide-Tipped / HW Tooling is paired with right-hand rotation in the verified D125.120R configuration.
Verify that the boring head, spindle, chuck, or adapter accepts the required shank and is intended for right-hand tooling. Confirm clean toolholding, minimal runout, correct insertion and height adjustment, appropriate drilling depth, secure workpiece support, and suitable spindle/feed parameters before production.
Royce Ayr D125.120R combines a 12 mm cutting diameter, 44 mm cutting edge, right-hand rotation, Z2 geometry, carbide-tipped / hw tooling, and the D125 10 × 30 mm shank / 77 mm overall-length platform.
It is intended for blind-hole drilling in particleboard, MDF, and solid wood on compatible CNC drill banks, CNC boring equipment, and portable woodworking machines.