3 mm Solid Carbide
The verified 3 mm diameter and 37 mm cutting edge are retained with the D107 10x20 mm / 57 mm solid-carbide platform.


Royce Ayr D107.030L is a 3 mm left-hand solid-carbide brad-point dowel drill. Its verified 57 mm overall length supports precision blind-hole drilling in particleboard, MDF, and solid wood on compatible woodworking production systems.
Left Hand-hand drilling tool with a verified 3 mm diameter and 57 mm overall length in the Royce Ayr D107 family.
For compatible CNC drill banks, CNC boring systems, and woodworking drilling equipment configured for the required D107 shank platform and left-hand rotation.
The Royce Ayr D107.030L is a left-hand brad-point dowel drill engineered for production woodworking boring. Its verified 3 mm cutting diameter and 57 mm overall length support accurate machining in compatible CNC and portable boring systems.
Archived Royce data explicitly lists D107.030L at 3 mm diameter, 37 mm cutting edge, 10 × 20 mm shank platform, 57 mm overall length and left-hand rotation. Royce identifies D107 as solid-carbide dowel drilling tooling. The archive does not publish b1 or Z for this exact left-hand 3 mm row, so those values are intentionally not added.
Solid Carbide Tooling supports long service life in production drilling. Before production, confirm left-hand rotation, toolholder compatibility, insertion depth, runout, drilling depth, secure workpiece support, and suitable spindle/feed parameters.
Technical Specifications
The verified 3 mm diameter and 37 mm cutting edge are retained with the D107 10x20 mm / 57 mm solid-carbide platform.
The SKU-specific overall length and family geometry are retained without importing unsupported dimensions from adjacent Royce drill sizes.
D107.030L 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 accepts the required family shank and 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. Do not infer b1 or Z from the right-hand variant or adjacent D107 sizes.
Royce Ayr D107.030L combines a verified 3 mm diameter, 37 mm cutting edge, left-hand rotation, solid-carbide construction and the D107 10x20 mm shank / 57 mm overall-length platform.
It is intended for accurate industrial woodworking drilling on compatible CNC drill banks, boring equipment, and production systems.