CMT Dowel Drill with Countersink - 5/16" x 12 x 70mm, 10x41mm Shank, Right-Hand by CMT is a precision-engineered boring and countersinking tool designed for woodworking professionals who need to drill dowel holes and recess bolt heads or panel connectors in a single pass. Built on a super-strength steel body with a tungsten carbide (HW) cutting head, this right-hand rotation drill is purpose-built for use in multi-spindle CNC boring machines, boring centers, and panel processing equipment. The PTFE-coated spiral and negatively ground spurs deliver clean, accurate holes through chipboard, MDF, hardwood, plywood, laminates, and coated panels - making it a dependable choice for cabinet production, furniture manufacturing, and panel processing operations.

Key Features

• HW (Tungsten Carbide) Cutting Head on Super-Strength Steel Body - the carbide cutting head maintains a sharp, stable edge through demanding production runs, reducing the frequency of tool changes and keeping downtime low.
• PTFE Coating on Spiral Portion - the non-stick orange or black PTFE coating resists pitch and adhesive buildup on the flutes, so the tool stays cleaner longer and feeds smoothly through coated panels, laminates, and glue-treated materials.
• 2 Precision-Ground Negatively Set Spurs (V2) - negatively ground spurs score the perimeter of the bore cleanly before material is removed, preventing tearout and delivering flat-bottom holes with smooth, chip-free walls in both face and edge drilling applications.
• 2 Precision-Ground Cutting Edges (Z2) - twin balanced cutting edges share the load evenly, promoting accurate, vibration-free boring and extending overall edge life compared to single-flute designs.
• Precision-Balanced Centre Point - the HW centre point locates on the workpiece accurately at the start of each bore, eliminating walking and ensuring hole placement stays true to layout - critical in CNC and multi-spindle production environments.
• 2 Spiral Flutes - twin flutes efficiently evacuate chips from the cutting zone, reducing heat buildup and maintaining bore quality even at higher feed rates in production settings.
• Parallel Shank with Driving Flat and Length Adjusting Screw - the 10x41mm parallel shank with driving flat locks securely into boring machine chucks or adapters, while the length adjusting screw allows precise depth setting for consistent countersink depth across every hole in a batch.
• Integrated Countersink - combines dowel boring and connector recessing in one tool and one pass, eliminating the need for a separate countersinking step and speeding up panel assembly workflows.

Why This Product

• Two operations, one pass - the integrated countersink removes the need to swap tools or run a second operation to recess bolt heads and panel connectors, directly reducing cycle time in high-volume panel processing and cabinet production.
• Clean results in demanding panel materials - the combination of negatively ground spurs, a precision-balanced centre point, and PTFE-coated flutes is specifically suited to the chipboard, MDF, HDF, laminate, and coated panel stock used in furniture and cabinet manufacturing, where surface quality at the bore opening is critical.
• Repeatable depth control in production settings - the parallel shank with driving flat and length adjusting screw lets operators dial in countersink depth once and hold it consistently across an entire production run, reducing scrap from over- or under-recessed bores.
• Designed for CNC and multi-spindle boring equipment - the 10x41mm shank geometry and right-hand rotation make this drill compatible with multi-spindle CNC boring machines, boring centers, and panel processing centers, fitting directly into the tooling systems already in use in most professional shops.

Specifications

• Manufacturer Part Number: 377.080.11
• Brand: CMT Orange Tools
• Diameter: 5/16"
• Cutting Height: 12mm
• Total Length: 70mm
• Shank: 10x41mm
• Rotation: Right-Hand (RH)
• Number of Cutting Edges: 2 (Z2)
• Number of Spurs: 2 (V2)
• Spur Sharpening: Negatively ground spurs
• Blade Material: HW (Tungsten Carbide)
• Body Material: Super-strength steel
• Coating: PTFE (orange or black) on spiral portion

Approved Applications

• Drilling and countersinking in a single pass
• Bolt head and connector recessing in panel stock
• Dowel hole boring in cabinet and furniture components
• Panel processing operations in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
• Multi-spindle CNC boring machine use
• CNC boring center and panel processing center use
• Boring machine use with adapter or chuck