8.2 mm Verified Diameter
The verified 8.2 mm cutting diameter is paired with a 43 mm cutting edge for repeatable blind-hole dowel drilling.


Royce Ayr D105.082L is a 8.2 mm left-hand carbide-tipped brad-point dowel drill from the D105 family. Its verified 70 mm overall length supports precision blind-hole boring in compatible woodworking production systems.
Left Hand-hand brad-point dowel drill with a 8.2 mm cutting diameter and 70 mm overall length in the Royce Ayr D105 family.
For compatible CNC drill banks, CNC boring systems, and portable woodworking machines configured for the appropriate D105 shank platform and left-hand rotation.
The Royce Ayr D105.082L is a left-hand carbide-tipped brad-point dowel drill engineered for blind-hole drilling in particleboard, MDF, and solid wood. Its 8.2 mm cutting diameter supports repeatable dowel-hole production on compatible CNC drill banks and portable woodworking machines.
Royce Ayr lists this D105 configuration with a 43 mm cutting edge, 20 mm b1 dimension, 10 mm shank diameter, and 70 mm overall length. The verified configuration uses Z2 / two cutting edges.
Carbide-tipped construction supports long service life in production boring. Before production, confirm left-hand rotation, toolholder compatibility, insertion depth, runout, drilling depth, and machine parameters for the material being bored.
Technical Specifications
The verified 8.2 mm cutting diameter is paired with a 43 mm cutting edge for repeatable blind-hole dowel drilling.
The D105 family is configured around its verified shank geometry and 70 mm overall length for compatible production boring systems.
Carbide-Tipped / HW Tooling is paired with left-hand rotation in the verified D105.082L configuration.
Verify that the boring head, spindle, chuck, or adapter accepts the required shank and is intended for left-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 D105.082L combines a 8.2 mm cutting diameter, 43 mm cutting edge, left-hand rotation, Z2 geometry, carbide-tipped / hw tooling, and the D105 10 × 20 mm shank / 70 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.