Product Description
CMT 314.120.11 Dowel Drill for Through Hole - 12 x 35 x 70mm RH is a precision-engineered, carbide-tipped boring tool built for clean, accurate through-hole drilling in panel processing and furniture manufacturing. Designed for use with multi-spindle CNC boring machines, boring centers, and panel processing equipment, this right-hand rotation drill produces consistent, blowout-free through holes for dowel joinery in chipboard, MDF, hardwood, softwood, plywood, laminates, and coated panels. With a 12mm cutting diameter, a 35mm cutting height, and a 70mm overall length, it is well suited for through-hole boring in panels up to 35mm deep - delivering repeatable accuracy cycle after cycle on production lines and custom woodworking operations alike.
Key Features
- HW (Tungsten Carbide) Cutting Head with Precision Balanced Centre Point - the hardened carbide tip maintains a sharp, centered entry into the workpiece, reducing wandering and producing clean, dimensionally accurate through holes every time.
- 2 Precision Ground Cutting Edges (Z2) - dual cutting edges remove material efficiently and evenly, minimizing heat buildup and extending service intervals between sharpenings in high-cycle production environments.
- 2 Spiral Flutes with PTFE Coating - the orange or black PTFE coating on the spiral portion prevents pitch, resin, and glue buildup from adhering to the tool, reducing clogging and keeping the drill running smoothly through adhesive-treated or coated panel materials.
- Super-Strength Steel Body - a robust steel shank and body resist flexing and breakage under the lateral loads common in multi-spindle boring heads, supporting consistent performance across repeated production runs.
- Parallel Shank with Driving Flat and Length Adjusting Screw - the 10 x 26mm shank locks securely in compatible boring machine chucks with the driving flat preventing slippage, while the length adjusting screw allows precise depth and projection setting for repeatable through-hole positioning.
- Through-Hole Geometry - 60 deg. Sharpening Specification - the through-hole point geometry is optimized to exit the panel cleanly, minimizing tearout and blowout on the underside of the workpiece for a professional finish on both faces of the panel.
- Right-Hand Rotation (RH) - matches the spindle direction of standard right-hand CNC boring machines and multi-spindle boring heads, ensuring correct chip evacuation and tool engagement without spindle modification.
Why This Product
- The through-hole geometry and precision-ground centre point work together to produce clean entry and exit on both panel faces - making this drill the right choice when blowout-free holes are required for visible furniture joints or finished panel surfaces.
- The PTFE-coated spiral flutes reduce adhesive and pitch accumulation during processing of laminates, coated panels, and glue-treated materials - helping maintain cutting performance without frequent cleaning stoppages on production lines.
- The 10 x 26mm parallel shank with driving flat and length adjusting screw is designed for fast, accurate setup in multi-spindle boring heads and boring centers - reducing changeover time and ensuring consistent hole depth across all spindles.
- With HW (tungsten carbide) construction and a 60 deg. sharpening specification, this drill can be resharpened through at least 60 sharpenings - extending the usable life of the tool and offering a lower long-term cost per hole compared to non-resharpenable alternatives.
Specifications
- Manufacturer Part Number: 314.120.11
- Brand: CMT Orange Tools
- Diameter: 12mm
- Cutting Height: 35mm
- Total Length: 70mm
- Shank: 10 x 26mm
- Number of Teeth: 2
- Rotation: Right-Hand (RH)
- Material: HW (Tungsten Carbide)
- Sharpening Specification: Through holes 60
- Application Type: Through Hole Dowel Drilling
Approved Applications
- Through-hole drilling for dowel connections and dowel joinery
- Panel processing in furniture manufacturing
- Boring through chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
- Use in multi-spindle CNC boring machines and boring centers
- Use in panel processing centers with compatible boring head or chuck adapter
Frequently Asked Questions
What is the difference between a through-hole dowel drill and a blind-hole dowel drill, and is this the right type for my application?
A through-hole dowel drill is designed to bore completely through the panel, with its point geometry and flute design optimized to exit cleanly without blowout on the underside of the workpiece. A blind-hole drill stops at a set depth within the panel. The CMT 314.120.11 is a through-hole model with a 35mm cutting height and 70mm total length - choose it when your joinery or assembly process requires a hole that passes fully through the panel material.
What shank size and machine type is this drill compatible with?
This drill uses a 10 x 26mm parallel shank with a driving flat and a length adjusting screw. It is designed for use in multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines fitted with a compatible adapter or chuck that accepts a 10mm parallel shank with driving flat.
Can this drill be resharpened, and how many times?
Yes. The CMT 314.120.11 is designed for resharpening. The sharpening specification in the product data indicates a through-hole sharpening rating of 60, meaning the tool is engineered to support up to 60 sharpenings - allowing extended service life when the cutting edges are periodically reconditioned by a qualified tool grinding service.
What materials can this dowel drill cut through?
The HW (tungsten carbide) cutting head and through-hole geometry make this drill suitable for chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels. The PTFE-coated spiral flutes help resist pitch and adhesive buildup when working with coated or glue-treated panel materials.
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