Product Description
The CMT 366.120.11 Two Flute Dowel Drill for Through Holes is a precision-engineered boring tool built for demanding panel processing and furniture manufacturing applications. Designed specifically for drilling clean, accurate through holes for dowel connections, this 12mm diameter drill delivers consistent results in chipboard, MDF, hardwood, softwood, plywood, laminates, and coated panels. With a right-hand rotation, a 44mm cutting height, and a full 77mm overall length, it handles deep through-hole drilling in thick panels where shorter series bits fall short. The two-flute spiral design, hardmetal (HW) cutting head, and PTFE-coated spiral work together to produce smooth bore walls while minimizing pitch and resin buildup - keeping the tool performing cleanly across extended production runs.
Key Features
- HW (Hardmetal) Cutting Head - tungsten carbide construction delivers long-lasting edge retention and consistent bore quality even in abrasive engineered wood products like chipboard and MDF.
- 2 Precision Ground Cutting Edges (Z2) - two symmetrically balanced flutes distribute cutting forces evenly, reducing vibration and producing cleaner hole walls with every pass.
- PTFE-Coated Spiral Portion - the orange or black P.T.F.E. coating on the spiral resists pitch and adhesive buildup, reducing friction and extending service life in production environments where resin-heavy materials are processed.
- Precision Balanced Centre Point - keeps the drill accurately positioned at the start of each bore, preventing drift and ensuring hole placement accuracy for tight-tolerance dowel joinery.
- Super-Strength Steel Body - the high-strength steel shank and body resist flexing under load, maintaining straight, true bores even at full cutting depth.
- Parallel Shank with Driving Flat and Length Adjusting Screw - the 10x26mm shank with driving flat locks securely in multi-spindle boring machines and CNC boring centers, while the length adjusting screw allows precise depth setting for repeatable results.
- 44mm Cutting Height / 77mm Overall Length - the extended through-hole long series geometry reaches full depth in thick panels where standard-length dowel drills cannot complete a clean through bore.
- Right-Hand Rotation (RH) - compatible with the right-hand spindle configurations standard in most multi-spindle CNC boring machines and panel processing centers.
Why This Product
- The 77mm overall length and 44mm cutting height make this drill the right choice when boring through thick panels for dowel joinery - standard-length bits cannot reach full depth without sacrificing hole quality.
- The HW carbide cutting head combined with the PTFE-coated spiral addresses two of the most common problems in production boring - premature edge wear and chip/resin buildup - keeping cycle times short and regrind intervals longer.
- The precision balanced centre point and two precision-ground cutting edges work together to produce the tight dimensional tolerances that dowel connections require - sloppy bores lead to loose joints, and this drill is built to prevent that.
- The 10x26mm parallel shank with driving flat and length adjusting screw is directly compatible with the spindle chucks used in multi-spindle CNC boring machines and panel processing centers, making installation and depth-setting straightforward in a production line context.
Specifications
- Manufacturer Part Number: 366.120.11
- Brand: CMT Orange Tools
- Diameter: 12mm
- Cutting Height: 44mm
- Total Length: 77mm
- Shank: 10x26mm (parallel shank with driving flat and length adjusting screw)
- Number of Flutes: 2
- Blade Material: HW (Hardmetal / Tungsten Carbide)
- Rotation: Right-Hand (RH)
- Sharpening: Through holes 60
Approved Applications
- Drilling through holes for dowel connections in furniture panels and cabinet components
- Panel processing in industrial and production shop environments
- Furniture manufacturing on multi-spindle CNC boring machines and boring centers
- Through-hole boring in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
- Deep through-hole drilling in thick panels requiring extended cutting reach
Frequently Asked Questions
What machines is this dowel drill compatible with?
This drill features a 10x26mm parallel shank with a driving flat and length adjusting screw, which is the standard mounting configuration for multi-spindle CNC boring machines, CNC boring centers, and panel processing centers. It can also be used in boring machines equipped with a suitable adapter or chuck sized for a 10mm shank.
What is the PTFE coating on the spiral and what does it do?
The spiral portion of this drill is coated with P.T.F.E. (polytetrafluoroethylene), which is applied in either orange or black. This non-stick coating prevents pitch, resin, and adhesive residue from accumulating on the flutes during boring operations. Keeping the flutes clear reduces friction, helps chips evacuate more freely, and extends the time between cleanings and resharpenings.
Why does this drill have a 77mm overall length instead of a standard shorter length?
This is a through-hole long series drill designed specifically for boring complete through holes in thick panels. The 77mm overall length and 44mm cutting height allow the tool to reach full depth and exit the opposite face cleanly without the drill body interfering with the workpiece surface - a requirement that standard-length dowel drills cannot always meet in thicker panel stock.
What materials can this drill cut effectively?
The HW (hardmetal / tungsten carbide) cutting head makes this drill well suited for chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels. The carbide tip maintains sharp cutting edges through the abrasive binders and adhesives present in engineered wood products, while the PTFE-coated spiral helps manage resin and glue residue encountered in laminated and coated materials.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.