Product Description
CMT 310.082.12 Dowel Drill - 8.2 x 27 x 57.5mm Left-Hand Rotation is a precision carbide-tipped boring tool engineered for clean, flat-bottom blind holes in panel processing and furniture manufacturing applications. Built on a super-strength steel body with a tungsten carbide (HW) cutting head, this 2-flute left-hand dowel drill delivers accurate, repeatable results in solid wood, chipboard, MDF, laminates, and coated panels. The spiral portion is coated with P.T.F.E. to resist pitch and adhesive buildup, keeping the flutes clear during high-volume production runs. Designed for multi-spindle boring machines and CNC boring centers, this short-series drill (57.5mm overall length) is a reliable choice for dowel joinery, panel drilling, and cabinet assembly operations.
Key Features
- 2 HW precision-ground cutting edges (Z2) - tungsten carbide tips maintain sharpness through demanding production cycles, reducing regrind frequency and tool changeover time.
- 2 negatively ground spurs (V2) - score the perimeter of the bore before the carbide edges cut, producing clean hole walls and flat bottoms with no tearout on laminates or coated panel faces.
- P.T.F.E.-coated spiral flutes - the orange or black P.T.F.E. coating prevents resin, pitch, and glue from bonding to the spiral, promoting efficient chip evacuation and extending service life between cleanings.
- Super-strength steel body - resists deflection and vibration during high-speed multi-spindle operation, helping maintain hole position accuracy across large panel runs.
- Precision-balanced centre point - centers the drill accurately on the bore location without wandering, ensuring consistent dowel hole alignment for tight-fitting joints.
- Parallel shank with driving flat and length-adjusting screw (10 x 27mm) - provides positive engagement in boring machine spindles and allows precise depth setting without additional fixturing.
- Left-hand (LH) rotation - matched to left-hand spindle positions on multi-spindle boring machines, making this drill a direct fit for machines that require counter-rotating tooling.
- 8.2mm cutting diameter with 27mm cutting height - sized for standard dowel bores in furniture and cabinet panel applications where controlled blind-hole depth is critical.
Why This Product
- The negatively ground spurs combined with the HW carbide cutting head address the most common panel drilling problem - surface tearout on laminates and coated boards - giving furniture manufacturers cleaner holes without secondary finishing steps.
- The P.T.F.E. spiral coating directly reduces downtime in production environments where resin-heavy materials like chipboard and MDF cause rapid pitch buildup on uncoated drills, keeping the tool cutting efficiently for longer periods.
- The left-hand rotation designation makes this drill a precise drop-in replacement for LH spindle positions on multi-spindle CNC boring centers and panel processing machines, eliminating the risk of mis-specifying tooling for mixed-rotation spindle heads.
- At 57.5mm overall length, this short-series drill is sized to fit standard boring machine spindle clearances without adapter extensions, minimizing runout and keeping setup straightforward for blind dowel hole drilling.
Specifications
- Manufacturer Part Number: 310.082.12
- Brand: CMT Orange Tools
- Product Type: Dowel Drill
- Diameter: 8.2mm
- Cutting Height: 27mm
- Total Length: 57.5mm
- Shank: 10 x 27mm parallel shank with driving flat and length adjusting screw
- Number of Teeth: 2
- Number of Spurs: 2
- Spur Sharpening: Negatively ground spurs
- Rotation: Left-hand (LH)
- Blade Material: HW (Tungsten Carbide)
- Spiral Coating: P.T.F.E. (orange or black)
- Status: Active
Approved Applications
- Blind hole drilling for dowel connections and dowel joinery
- Panel drilling in chipboard, MDF, and HDF
- Furniture manufacturing and cabinet making
- Drilling in solid hardwood and softwood
- Boring in plywood, laminates, and coated panels
- Use in multi-spindle CNC boring machines and boring centers
- Use in panel processing centers with LH spindle positions
- Use in boring machines with adapter or chuck for LH tooling
Frequently Asked Questions
What does "LH" (left-hand) rotation mean, and why does it matter?
Left-hand (LH) rotation means the drill spins counter-clockwise when viewed from the shank end. Multi-spindle boring machines use both right-hand and left-hand spindles so that the cutting forces on adjacent spindles balance against the workpiece. Using a LH drill on a LH spindle ensures the bit cuts correctly and the spurs score cleanly - installing a right-hand drill in a left-hand spindle would cause the tool to back out rather than bore into the material.
What is the purpose of the negatively ground spurs on this dowel drill?
The 2 negatively ground spurs (V2) score the perimeter of the hole ahead of the main carbide cutting edges. This severs the surface fibers of the material - particularly important on laminates, coated panels, and veneered boards - before the body of the drill removes the core material. The result is a clean, chip-free bore wall and a flat bottom, which is essential for tight-fitting dowel joints in furniture and cabinet panels.
What materials can this dowel drill be used on?
This drill is suited for blind-hole boring in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels. The P.T.F.E.-coated spiral flutes help manage resin and adhesive buildup that is common when drilling chipboard and MDF in production environments.
What does the P.T.F.E. coating on the spiral flutes do?
P.T.F.E. (polytetrafluoroethylene) is a low-friction, non-stick coating applied to the spiral portion of the drill. It prevents pitch, resin, and adhesive residues from bonding to the flutes during drilling. Keeping the flutes clean promotes better chip evacuation, reduces heat buildup, and extends the effective cutting life of the tool between cleaning or regrinding cycles.
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.