CMT Dowel Drill with Countersink - 5/16" x 15 x 57mm, 10x25mm Shank, Right-Hand by CMT is a precision-engineered boring tool designed to drill and countersink in a single pass on CNC boring machines and multi-spindle panel processing centers. Built on a super-strength steel body with a tungsten carbide (HW) cutting head, this right-hand rotation drill produces clean, accurate dowel holes with a finished countersink recess - eliminating the need for a separate countersinking step and saving setup time on panel and furniture production lines.

Key Features

• Hardmetal (HW) carbide cutting head with precision balanced centre point - delivers accurate hole entry with no wandering or tear-out, ensuring consistently centered dowel holes across production runs.
• 2 precision-ground cutting edges (Z2) - dual cutting geometry distributes cutting load evenly, extending edge life and producing smooth, flat-bottomed holes in engineered wood panels and solid wood.
• 2 ground spurs (V2) - score the perimeter of the hole before the cutters engage, creating clean bore walls free of fiber lifting or chip-out in chipboard, MDF, hardwood, and coated panels.
• 2 spiral flutes - efficiently evacuate chips from the bore during drilling, reducing heat buildup and preventing clogging that can cause surface damage or tool deflection.
• PTFE-coated spiral portion (orange or black) - non-stick coating resists pitch and adhesive buildup on the flutes, keeping the tool running cleanly for longer between cleanings and reducing downtime.
• Super-strength steel body - withstands the rigors of high-cycle boring machine operation, maintaining structural integrity under repeated use in production environments.
• Integrated countersink geometry - creates a clean recess for bolt heads and panel connectors in the same operation as the dowel bore, reducing cycle time and the need for a secondary tool.
• Parallel shank with driving flat and length adjusting screw (10x25mm) - provides secure, slip-free seating in boring machine chucks and allows precise depth setting without additional tooling changes.
• Right-hand (RH) rotation - compatible with standard right-hand boring machine spindles used on CNC boring centers and multi-spindle panel processing equipment.

Why This Product

• Combines dowel drilling and countersinking into a single tool pass - reducing the number of tools required per operation and cutting cycle time on panel furniture and cabinet manufacturing lines.
• The hardmetal (HW) tipped cutting head paired with 2 ground spurs and 2 precision-ground cutting edges is engineered specifically for engineered wood products such as chipboard, MDF, and coated panels where clean hole walls and flat bottoms are critical to joint quality.
• The PTFE-coated spiral resists pitch and glue buildup common in laminate and coated panel boring - keeping the tool performing consistently without frequent cleaning interruptions during production shifts.
• The 10x25mm parallel shank with driving flat and length adjusting screw ensures repeatable depth settings across spindles on multi-spindle CNC boring machines, supporting consistent output on high-volume production runs.

Specifications

• Manufacturer Part Number: 376.081.11
• Brand: CMT Orange Tools
• Diameter: 5/16"
• Cutting Height: 15mm
• Total Length: 57.5mm
• Shank: 10x25mm
• Number of Cutting Edges: 2 (Z2)
• Number of Spurs: 2 (V2)
• Number of Flutes: 2
• Blade Material: HW (Hardmetal Carbide)
• Rotation: Right-hand (RH)
• Coating: PTFE (orange or black) on spiral portion
• Body Material: Super-strength steel

Approved Applications

• Drilling and countersinking in one pass on boring machines
• Bolt head and connector recessing in panel furniture components
• Dowel hole boring in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
• Panel processing on CNC boring centers and multi-spindle boring machines
• Cabinet and furniture manufacturing production lines