5/16-Inch Drill Interface
D175.080L is the exact left-hand D175 configuration for a 5/16-inch drill interface, using an 18 mm shell diameter.
Royce Ayr Carbide-Tipped Shell Countersink – 5/16in Drill – 18mm OD – 2-Tooth – Left-Hand
CA$999.99
Out of stock
SKU
D175.080L
Product Type
Carbide-Tipped Shell Countersink
Series
D175
Drill Interface
5/16 in / 0.3125 in
Shell Diameter
18 mm
Cutting Edges
Z2 / 2
Rotation
LH / Left Hand
Cutting Material
Carbide Tipped
Countersink
90° Screw Head
Mounting
Set Screw onto Drill Twist
Compatible Drills
D100–D155 Metric Drills
Machine Type
CNC Router
Industry
Cabinet &Casegoods Manufacturing
Carbide-Tipped Shell
Countersink
Shell Countersink
Left-hand carbide-tipped shell countersink for use with compatible Royce Ayr D100–D155 metric drills. The verified D175.080L configuration uses a 5/16-inch drill interface, 18 mm shell diameter, two cutting edges, and set-screw attachment for producing a 90-degree screw-head countersink.
Ds=5/16 inDrill Interface
D=18 mmShell Diameter
Z=2Cutting Edges
LHLeft-Hand Rotation
Shell Countersink
Carbide-tipped two-edge shell countersink designed to mount directly onto the twist of a compatible drill. The shell forms a 90-degree screw-head countersink while the installed drill performs the pilot-hole operation.
Carbide TippedZ25/16 in · 18 mmSKU D175.080L
Specified for use with Royce Ayr D100–D155 metric drills. D175.080L is the left-hand 5/16-inch version with an 18 mm shell diameter and set-screw retention.
Main Product Description
The Royce Ayr D175.080L is a carbide-tipped shell countersink engineered for use with compatible D100–D155 metric drills. The exact current configuration is a 5/16-inch drill interface, 18 mm shell diameter, two cutting edges, and left-hand rotation.
The shell fastens onto the twist of the drill with a set screw, allowing the drill and countersink to operate as a combined setup. Royce Ayr specifies the D175 series for producing a 90-degree screw-head countersink in CNC drilling and cabinet-component production.
Because the countersink mounts directly to the drill, correct drill compatibility and concentric installation are critical. Verify the 5/16-inch drill size, left-hand rotation, set-screw engagement, shell clearance, runout, spindle condition, drilling depth, feed rate, RPM, extraction, and workpiece support before production.
Technical Specifications
Shell Countersink D175.080L
- Royce Ayr
- Carbide-Tipped Shell Countersink
- D175.080L
- D175
- Carbide Tipped
- 5/16 in / 0.3125 in
- 18 mm
- Z2 / 2
- LH / Left Hand
- 90° Screw Head
- Set Screw onto Drill Twist
- D100–D155 Metric Drills
- Machine Type: CNC Router · Industry: Cabinet & Casegoods Manufacturing
- Specified for use with Royce Ayr D100–D155 metric drills. D175.080L is the left-hand 5/16-inch version with an 18 mm shell diameter and set-screw retention.
Best Fit Applications
D100–D155 Metric Drills
90° Screw-Head Countersinking
Combined Drill & Countersink
CNC Router Operations
Cabinet & Casegoods
Product Highlights
Carbide-Tipped Z2 Shell
Two carbide-tipped cutting edges provide the verified Z2 geometry for the shell countersink while preserving the compact D175 mounting concept.
Set-Screw Mounted Countersinking
The shell fastens directly onto the twist of a compatible D100–D155 drill with a set screw to create a combined pilot-drill and 90-degree countersink setup.
Compatibility & Installation Notes
Confirm that the selected Royce Ayr D100–D155 drill provides the exact 5/16-inch interface required by D175.080L and that the machine setup requires left-hand rotation. Seat the shell concentrically on the drill twist, tighten the set screw securely, and verify drill condition, shell clearance, runout, countersink depth, RPM, feed rate, extraction, and workpiece support before production.
5/16-Inch Drill Integration with a 90° Countersink
Royce Ayr D175.080L combines a 5/16-inch drill interface, 18 mm shell diameter, two carbide-tipped cutting edges, left-hand rotation, and set-screw mounting in the D175 shell-countersink format.
It is designed to pair with compatible D100–D155 metric drills so the pilot hole and 90-degree screw-head countersink can be produced in a coordinated CNC drilling setup.