8 mm Dowel-Hole Diameter
The 8 mm (0.315 in) cutting diameter is paired with a 37 mm (1.457 in) cutting edge for blind-hole dowel drilling in supported woodworking materials.


Royce Ayr D107.080R is an 8 mm (0.315 in) right-hand solid-carbide dowel drill from the D107 metric family. Royce Ayr specifies a 37 mm (1.457 in) cutting edge, 10 × 20 mm (0.394 × 0.787 in) shank configuration, two cutting edges, and 57 mm (2.244 in) overall length for blind-hole drilling in particleboard, MDF, and solid wood.
Right-hand metric dowel drill with an 8 mm cutting diameter, 37 mm cutting edge, D107-series 10 × 20 mm shank configuration, and Z2 cutting geometry.
For compatible CNC drill banks, CNC boring systems, and portable woodworking machines configured for a 10 mm shank and right-hand rotation.
The Royce Ayr D107.080R is a right-hand solid-carbide metric dowel drill engineered for blind-hole drilling in particleboard, MDF, and solid wood. Its 8 mm (0.315 in) cutting diameter and Z2 geometry suit repeatable dowel-hole production on compatible CNC drill banks and portable woodworking machines.
Royce Ayr lists this D107 configuration with a 37 mm (1.457 in) cutting edge, 20 mm (0.787 in) b1 dimension, 10 mm (0.394 in) shank diameter, and 57 mm (2.244 in) overall length. The D107 family is identified as a 10 × 20 mm shank platform, giving the tool a compact standardized interface for compatible boring equipment.
Solid-carbide construction is specified for wear resistance and strength, and Royce Ayr incorporates a screw in the end of the tool for height adjustment. Before production, confirm right-hand rotation, toolholder compatibility, insertion depth, runout, drilling depth, and machine parameters for the material being bored.
Technical Specifications
The 8 mm (0.315 in) cutting diameter is paired with a 37 mm (1.457 in) cutting edge for blind-hole dowel drilling in supported woodworking materials.
The D107 family uses a 10 × 20 mm shank configuration and 57 mm overall length for compatible CNC drill-bank and woodworking boring systems.
Solid-carbide construction provides wear resistance and strength, while right-hand rotation and two cutting edges match the verified D107.080R configuration.
Verify that the boring head, spindle, chuck, or adapter accepts the D107-series 10 mm 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. The 37 mm cutting-edge dimension does not by itself define the allowable drilling depth for every machine setup.
Royce Ayr D107.080R combines an 8 mm cutting diameter, 37 mm cutting edge, right-hand rotation, Z2 geometry, solid-carbide construction, and the D107 10 × 20 mm shank / 57 mm overall-length platform.
It is specified for blind-hole drilling in particleboard, MDF, and solid wood, with the compact D107 format suited to compatible CNC drill banks, CNC boring equipment, and portable woodworking machines.