Product Description
CMT 309.140.11 Dowel Drill 14 x 43 x 70mm RH is a precision-engineered, right-hand rotation dowel boring tool built for demanding furniture production, cabinet making, and panel processing applications. Constructed with a tungsten carbide (HW) cutting head mounted on a super-strength steel body, this 14mm diameter drill delivers clean, flat-bottom blind holes with consistent bore wall quality in chipboard, MDF, hardwood, softwood, plywood, and coated panel materials. The cutter portion is coated with P.T.F.E. to resist pitch and resin buildup, keeping the tool performing at its best through extended production runs. With a 70mm overall length and 43mm cutting height, this long-series dowel bit accommodates thicker panel stock where standard-length drills fall short.
Key Features
- HW (Tungsten Carbide) Cutting Head - precision-ground carbide resists wear and maintains sharp cutting geometry longer than standard high-speed steel alternatives, reducing tool change frequency in production environments.
- P.T.F.E. Cutter Coating - the black or orange P.T.F.E. coating on the spiral portion prevents pitch and adhesive buildup, keeping the flutes clear and maintaining consistent chip evacuation during repetitive boring cycles.
- 2 Precision-Ground Cutting Edges (Z2) - dual carbide cutting edges deliver balanced material removal and a smooth, flat-bottom hole profile ideal for tight-tolerance dowel joinery.
- 2 Negatively Ground Spurs (V2) - negatively ground spurs score the panel surface before the main cutters engage, preventing tearout and producing clean bore entries on laminates, veneered panels, and coated surfaces.
- 4 Spiral Flutes - four flutes provide efficient chip clearance during blind hole drilling, reducing heat buildup and keeping bore walls clean even at production feed rates.
- Parallel Shank with Driving Flat and Length Adjusting Screw - the 10 x 20mm parallel shank with integrated driving flat locks positively in multi-spindle boring machine chucks, while the length adjusting screw enables precise depth setting for repeatable blind hole depth across all spindles.
- Long-Series 70mm Overall Length - the extended 70mm body with 43mm cutting height reaches deeper into thick panel stock, making this the right choice where standard short-series bits cannot achieve the required boring depth.
- Right-Hand Rotation - designed for standard right-hand spindle boring machines and CNC boring centers, ensuring correct engagement geometry and clean cutting action without spindle reversal.
Why This Product
- The negatively ground spurs combined with the HW cutting head make this dowel drill particularly well suited for laminated, veneered, and coated panel materials where surface chip-out at the bore entry ruins the finished workpiece.
- The P.T.F.E. cutter coating directly addresses one of the most common productivity problems in panel boring - pitch and glue accumulation on the spiral - keeping cycle times consistent without frequent cleaning stoppages.
- The 70mm long-series length with a 43mm cutting height provides access to deeper blind hole depths that a standard-series dowel bit cannot reach, expanding the range of panel thicknesses and joinery configurations this single tool can handle.
- The parallel shank with driving flat and length adjusting screw is engineered specifically for multi-spindle boring machines and CNC boring centers, enabling precise, repeatable depth control across every spindle position without individual adjustment guesswork.
Specifications
- Manufacturer Part Number: 309.140.11
- Brand: CMT Orange Tools
- Product Type: Dowel Drill
- Diameter: 14mm
- Cutting Height: 43mm
- Total Length: 70mm
- Shank: 10 x 20mm
- Rotation: Right-Hand (RH)
- Number of Cutting Edges: 2
- Number of Spurs: 2
- Spur Grind: Negatively ground spurs
- Number of Flutes: 4
- Blade Material: HW (Tungsten Carbide)
- Cutter Coating: P.T.F.E.
- Shank Style: Parallel shank with driving flat and length adjusting screw
Approved Applications
- Drilling blind holes for dowel connections in furniture and cabinet assembly
- Panel drilling in chipboard, MDF, HDF, and coated panel stock
- Through and blind hole boring in hardwood and softwood
- Dowel boring in laminates and veneered panels
- Plywood panel processing
- Furniture manufacturing and cabinet making production lines
Frequently Asked Questions
What machines is this dowel drill compatible with?
This drill features a 10 x 20mm parallel shank with a driving flat and length adjusting screw, which is the standard interface for multi-spindle CNC boring machines, CNC boring centers, and panel processing centers. It can also be used in single-spindle boring machines equipped with an appropriate adapter or chuck that accepts a parallel shank with driving flat.
What is the difference between this long-series drill and a standard-series dowel bit?
This 309.140.11 has a 70mm overall length with a 43mm cutting height, making it a long-series drill. The extended length allows it to reach deeper blind hole depths in thicker panel stock where a shorter-series bit would not achieve sufficient boring depth. Choose this version when your panel thickness or machine geometry requires the additional reach.
Why does this drill have negatively ground spurs instead of positively ground spurs?
Negatively ground spurs are designed to score the panel face cleanly before the main cutting edges remove material. This geometry is especially effective on laminated, veneered, and coated panels because it severs the surface fibers or coating at the bore perimeter before lifting or tearout can occur, resulting in a clean, chip-free bore entry that positively ground spurs may not achieve on sensitive face materials.
What does the P.T.F.E. coating on the cutter portion do?
The P.T.F.E. coating on the spiral section of the cutter acts as a non-stick barrier that resists the adhesion of pitch, resin, and glue residues that are common when drilling chipboard, MDF, and other engineered wood panels. By keeping the flutes cleaner during use, the coating helps maintain consistent chip evacuation, reduces friction-related heat buildup, and extends the working life of the tool between sharpenings or replacements.
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.