1/4 in Verified Diameter
The verified 1/4 in cutting diameter is paired with a 43 mm cutting edge for repeatable blind-hole dowel drilling.


Royce Ayr D105.064L is a 1/4 in left-hand carbide-tipped brad-point dowel drill. Its verified 70 mm overall length supports precise blind-hole and dowel-hole boring in compatible woodworking production systems.
Left Hand-hand brad-point dowel drill with a 1/4 in cutting diameter and 70 mm overall length.
For compatible CNC drill banks, CNC boring systems, and woodworking drilling equipment configured for left-hand tooling and the required machine interface.
The Royce Ayr D105.064L is a left-hand brad-point dowel drill engineered for repeatable production boring. Its 1/4 in cutting diameter and 70 mm overall length support accurate blind-hole and dowel-hole machining in compatible CNC and woodworking boring systems.
Royce Ayr lists this D105 configuration with a 43 mm cutting edge, 20 mm b1 dimension, 10 shank diameter, Z2 / two cutting edges, and 70 mm overall length.
Before production, confirm left-hand rotation, toolholder compatibility, insertion depth, runout, drilling depth, secure workpiece support, and appropriate machine parameters for the material being bored.
Technical Specifications
The verified 1/4 in cutting diameter is paired with a 43 mm cutting edge for repeatable blind-hole dowel drilling.
The verified overall length and SKU-specific geometry support compatible production boring systems without importing dimensions from unrelated tool families.
D105.064L is configured for left-hand boring positions and should be installed only in the corresponding machine station or spindle direction.
Verify that the boring head, spindle, chuck, or adapter is intended for left-hand tooling. Confirm clean toolholding, minimal runout, correct insertion, appropriate drilling depth, secure workpiece support, and suitable spindle/feed parameters before production.
Royce Ayr D105.064L combines a 1/4 in 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 precise blind-hole and dowel-hole drilling on compatible CNC drill banks, boring equipment, and woodworking production systems.