Industrial 2+2 Wing Geometry
Royce Ayr's 2+2 wing hinge-drill format is built for accurate larger-diameter blind holes in production woodworking and panel processing.


Carbide-tipped left-hand hinge boring drill for accurate blind-hole production in particle board, MDF, and solid wood. The verified D185.250L configuration combines a 25 mm cutting diameter, 10×26 mm shank, 70 mm overall length, and industrial 2+2 wing geometry for CNC drill banks and compatible portable machines.
Industrial carbide-tipped hinge-style boring drill for larger-diameter blind holes. The 2+2 wing geometry is intended for accurate production drilling in common wood and panel materials.
Designed for CNC drill banks and compatible portable machines using the verified 10×26 mm shank interface. A screw in the end of the tool provides height adjustment.
The Royce Ayr D185.250L is an Industrial 2+2 Wing Hinge Boring Drill for larger-diameter blind-hole drilling. The current exact product data verifies D=25 mm, b1=26 mm, 10 mm shank diameter, 70 mm overall length, Z2 geometry, HW carbide material, and left-hand rotation.
Royce Ayr specifies the D185 2+2 wing family for CNC drill banks and portable machines, with blind-hole applications in particle board, MDF, and solid wood. Carbide-tipped cutting edges support long service life in compatible woodworking and panel-processing operations.
A screw in the end of the drill provides height adjustment for controlled setup. Confirm the drilling spindle accepts the 10 mm shank, verify left-hand rotation, tool seating, adjustment, runout, drilling depth, feed rate, RPM, extraction, and workpiece support before production.
Technical Specifications
Royce Ayr's 2+2 wing hinge-drill format is built for accurate larger-diameter blind holes in production woodworking and panel processing.
The exact product page identifies HW material, corresponding to carbide-tipped construction for long service life in particle board, MDF, and solid wood.
The D185 platform combines the current 10×26 mm shank with a 70 mm overall length for compatible CNC drill banks and portable machines.
Confirm that the drill bank, boring spindle, or compatible portable machine accepts the exact 10×26 mm shank and requires left-hand rotation before installing D185.250L. Verify the end-screw height adjustment, tool seating, runout, drilling depth, feed rate, RPM, extraction, and workpiece support before production. The current exact Royce Ayr product data verifies b1=26 mm and OA=70 mm.
Royce Ayr D185.250L combines a 25 mm cutting diameter, 10×26 mm shank, 70 mm overall length, left-hand rotation, carbide-tipped cutting edges, and industrial 2+2 wing hinge-boring geometry.
It is intended for accurate blind holes in particle board, MDF, and solid wood on compatible CNC drill banks and portable machines, with end-screw height adjustment supporting controlled setup.