9 mm Verified Diameter
The published D150 table directly verifies this diameter with a 40 mm cutting edge and 70 mm overall length.


Royce Ayr D150.090L is a 9 mm left-hand carbide-tipped V-point thru-hole drill with 40 mm cutting edge, 20 mm b1, 10 × 20 mm shank platform and 70 mm OAL.
Left Hand-hand carbide-tipped V-point thru-hole drill with a verified 9 mm diameter and 70 mm overall length.
For compatible CNC drill banks, portable boring machines and woodworking drilling systems configured for the required shank platform and rotation.
The Royce Ayr D150.090L is a left-hand carbide-tipped V-point thru-hole drill engineered for accurate industrial woodworking drilling.
Royce publishes D150.090L with a 40 mm cutting edge, 20 mm b1, 10 mm shank diameter and 70 mm overall length. The D150 table used for this batch does not publish flute count, so no Z value is assigned.
The V-point through-hole geometry is intended for clean exit-hole drilling in compatible panel and woodworking materials. Confirm toolholder fit, rotation, runout, drilling depth, feed rate and spindle speed before production.
Technical Specifications
The published D150 table directly verifies this diameter with a 40 mm cutting edge and 70 mm overall length.
The D150 family uses a 10 mm shank with a 20 mm b1 / shank-platform dimension and 70 mm OAL.
D150.090L is configured for left-hand drilling positions and should be installed only in the corresponding machine station or spindle direction.
Confirm the exact SKU, rotation, drill-bank or adapter interface, toolholding condition, insertion depth, runout, drilling depth, workpiece support, and machine parameters before production.
Royce Ayr D150.090L combines a verified 9 mm diameter, left-hand rotation and 70 mm overall length with the D150 carbide-tipped V-point thru-drill platform.
Correct toolholder fit, rotation, runout control, workpiece support and drilling parameters are essential to clean through-hole performance.