Product Description
The CMT 316.070.11 Countersink for 4 Flute Drills is a precision carbide-tipped boring accessory designed to deliver clean, accurate countersinking on woodworking panels and sheet goods. With a 45 deg. cutting angle and right-hand rotation, this countersink integrates seamlessly into multi-spindle and CNC boring setups, allowing operators to chamfer and finish bored holes in a single, efficient operation. Engineered from HW (tungsten carbide) material, it provides the cutting durability needed for demanding production environments processing chipboard, MDF, hardwood, plywood, and coated panels.
Key Features
- HW (Tungsten Carbide) Cutting Material - delivers long-lasting edge retention and consistent cutting performance across abrasive panel materials like MDF, HDF, and laminates, reducing downtime for tool changes in production settings.
- 45 deg. Cutting Angle - produces a precise, standardized chamfer that ensures proper screw seating and a flush finish, eliminating the need for secondary hand-finishing operations.
- 9/32 in. Nominal Diameter Reference with 16mm Cutting Diameter - sized to match standard boring machine tooling configurations, making integration into existing multi-spindle setups straightforward.
- 7mm Bore Diameter - compatible with common boring machine arbors and adapters, enabling quick, tool-free changeovers in production environments.
- 2-Tooth Cutting Configuration - provides balanced cutting forces during right-hand rotation, resulting in smooth hole walls and a clean countersink seat with minimal vibration.
- 15mm Compact Total Length - allows the countersink to fit in tight spindle spacing on multi-spindle CNC boring machines without interference from adjacent tooling.
- Right-Hand (RH) Rotation - matches the standard spindle direction of CNC boring centers and multi-spindle machines, ensuring proper chip evacuation and cutting geometry.
Why This Product
- The 45 deg. carbide-tipped countersink produces a finished chamfer in the same boring pass used on CNC and multi-spindle machines, eliminating separate countersinking steps and reducing cycle time on panel processing lines.
- At 15mm total length and a 7mm bore diameter, this tool is specifically dimensioned for close-tolerance spindle arrangements found on industrial boring machines, fitting where longer countersinks cannot.
- HW carbide construction maintains sharp cutting edges through high-volume runs on abrasive materials such as chipboard, coated panels, and MDF - materials that rapidly dull standard high-speed steel tooling.
- The 2-tooth geometry with right-hand rotation produces a balanced, vibration-reduced cut that protects both the workpiece surface and the spindle bearings of the boring machine during repetitive production cycles.
Specifications
- Manufacturer Part Number: 316.070.11
- Brand: CMT Orange Tools
- Cutting Diameter: 16mm
- Bore Diameter: 7mm
- Total Length: 15mm
- Cutting Angle: 45 deg.
- Number of Teeth: 2
- Rotation: Right-hand (RH)
- Blade Material: HW (Tungsten Carbide)
Approved Applications
- Chipboard
- MDF (Medium Density Fiberboard)
- HDF (High Density Fiberboard)
- Hardwood
- Softwood
- Plywood
- Laminates
- Coated Panels
Frequently Asked Questions
What machines is the CMT 316.070.11 countersink compatible with?
This countersink is designed for use on multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and standard boring machines equipped with an appropriate adapter or chuck. Its 7mm bore diameter and 15mm total length are sized to fit the spindle tooling configurations found on these industrial machines.
What is the cutting angle of this countersink and why does it matter?
The cutting angle is 45 deg. This geometry produces a standard chamfer that allows screws and hardware to seat flush with the panel surface, which is important for cabinetry, furniture assembly, and other panel-based woodworking applications where a clean, finished appearance is required.
What material is the cutting edge made from?
The cutting edge is made from HW (tungsten carbide) material. Tungsten carbide maintains sharp cutting geometry much longer than high-speed steel when processing abrasive engineered wood products such as MDF, chipboard, and coated panels, making it well suited for high-volume production use.
Can this countersink be used with left-hand rotation spindles?
No. This tool is specifically designed for right-hand (RH) rotation only. Using it with a left-hand rotating spindle would result in improper cutting action, poor surface quality, and potential tool damage. Always confirm that your machine spindle rotates in the right-hand direction before mounting this countersink.
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