Product Description
The CMT 316.120.11 Countersink for 4 Flute Drills is a precision-engineered carbide-tipped countersink designed to deliver clean, accurate countersinking in panel processing and woodworking applications. With a 45 deg. cutting angle and a 15/32 in. (20mm) diameter, this right-hand rotation tool is built for compatibility with 4-flute drill configurations, enabling smooth, consistent results in a single pass. Manufactured from HW (tungsten carbide) material, it is engineered to withstand the demands of production environments while maintaining edge sharpness across a wide range of engineered wood and solid wood materials.
Key Features
- HW (Tungsten Carbide) Construction - delivers exceptional hardness and long-term cutting edge retention, reducing tool changes and downtime in high-cycle production work.
- 45 deg. Cutting Angle - produces a standard, universally compatible countersink profile that seats fasteners flush and cleanly without secondary cleanup.
- 15/32 in. (20mm) Cutting Diameter - sized to match common fastener head dimensions, ensuring a precise, snug countersink seat in a single operation.
- 12mm Bore Diameter - designed for secure, accurate mounting on compatible spindles, minimizing runout and improving hole quality.
- Right-Hand (RH) Rotation - conforms to standard machine spindle direction, making it straightforward to integrate into multi-spindle CNC boring machines and boring centers without special adapters.
- 2-Tooth Cutting Geometry - provides efficient chip evacuation and reduced heat buildup, protecting both the tool and the workpiece surface during countersinking.
- Compact 15mm Total Length - allows precise depth control in tight spindle configurations and multi-head setups, reducing interference with adjacent tooling.
Why This Product
- Specifically designed for use with 4-flute drill arrangements, this countersink integrates smoothly into existing multi-spindle boring setups, saving time and eliminating the need for separate countersinking passes.
- The HW carbide construction means the cutting edges stay sharp through demanding production runs on chipboard, MDF, and coated panels - materials that rapidly wear down lower-grade tooling.
- At 15/32 in. (20mm) diameter with a 45 deg. angle and a compact 15mm body, this tool fits precisely into tight boring head configurations where space between spindles is limited.
- The 12mm bore diameter provides a rigid, accurate fit on compatible machine spindles, which directly translates to consistent countersink depth and diameter across every hole in a production run.
Specifications
- Manufacturer Part Number: 316.120.11
- Brand: CMT Orange Tools
- Cutting Diameter: 20mm (15/32 in.)
- Bore Diameter: 12mm
- Total Length: 15mm
- Cutting Angle: 45 deg.
- Number of Teeth: 2
- Rotation: Right-Hand (RH)
- Blade Material: HW (Tungsten Carbide)
Approved Applications
- Multi-spindle CNC boring machines
- CNC boring centers
- Panel processing centers
- Boring machines with adapter or chuck
- Chipboard and particleboard
- MDF and HDF
- Hardwood and softwood
- Plywood
- Laminates and coated panels
Frequently Asked Questions
What is the cutting angle of the CMT 316.120.11 countersink?
The CMT 316.120.11 features a 45 deg. cutting angle, which produces a standard countersink profile compatible with common flat-head fastener requirements in furniture and cabinet production.
What bore diameter is required to mount this countersink?
This countersink has a 12mm bore diameter, so it is designed to mount on machine spindles or adapters with a 12mm shaft. Confirm your machine spindle size before installation to ensure a proper fit.
Is this countersink compatible with 4-flute drill configurations?
Yes - the CMT 316.120.11 is specifically designed for use with 4-flute drills, making it well-suited for multi-spindle boring machines and panel processing centers where 4-flute boring units are standard.
What material is the cutting edge made from?
The cutting edge is constructed from HW material, which is tungsten carbide. This provides excellent wear resistance and edge retention, making it appropriate for repeated use on engineered wood products such as chipboard, MDF, and coated panels, as well as solid wood materials.
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