Product Description
CMT 310.150.12 Dowel Drill - 15 x 27 x 57.5mm Left-Hand Rotation is a precision-engineered, carbide-tipped boring tool built for high-volume panel processing and furniture manufacturing. Designed for left-hand (LH) rotation, this short-series dowel drill delivers clean, flat-bottom blind holes in chipboard, MDF, hardwood, softwood, plywood, laminates, and coated panels. The tungsten carbide (HW) cutting head, PTFE-coated spiral flutes, and negatively ground spurs combine to produce accurately sized dowel bores with minimal tearout - making it an ideal choice for CNC boring centers, multi-spindle boring machines, and panel processing lines where repeatability and surface quality are critical.
Key Features
- Tungsten Carbide (HW) Cutting Head with 2 Precision-Ground Edges (Z2) - hard carbide edges maintain sharpness through repeated blind-hole drilling cycles in abrasive engineered panels and hardwood, reducing downtime from tool changes.
- 2 Negatively Ground Spurs (V2) - score the material perimeter cleanly before the carbide edges clear the waste, producing crisp bore walls and flat bottoms with no splintering or tearout - critical for visible face-side furniture panels.
- PTFE-Coated Spiral Flutes - the orange or black PTFE coating on the spiral portion prevents pitch, resin, and adhesive buildup, keeping the flutes clear for consistent chip evacuation and extending overall tool life.
- Precision-Balanced Centre Point - locates accurately on the workpiece surface at the start of each bore, reducing hole-position drift and improving repeatability on multi-spindle and CNC boring applications.
- Parallel Shank with Driving Flat and Length-Adjusting Screw - the 10 x 27mm shank seats securely in boring machine chucks and adapters, while the driving flat and adjusting screw allow precise depth setting without slippage.
- Super-Strength Steel Body - the tool body is manufactured from premium super-strength steel, providing rigidity and resistance to flex during high-cycle production drilling.
- Left-Hand (LH) Rotation - designed specifically for left-hand spindles on multi-spindle boring heads and CNC machines, ensuring correct chip evacuation direction and clean entry cuts on LH spindle positions.
- Short Series at 57.5mm Overall Length - the compact total length minimises overhang and vibration in tight multi-spindle configurations, maintaining hole accuracy across all spindle positions.
Why This Product
- Built specifically for left-hand spindle positions on multi-spindle boring heads and CNC boring centers - using the correct LH rotation drill eliminates torn entry edges and poor chip flow that occur when RH tools are substituted on LH spindles.
- The combination of negatively ground spurs and a precision-balanced centre point means dowel holes land exactly where programmed and exit cleanly on face-side panels - essential in cabinet making and furniture manufacturing where surface quality determines final product appearance.
- PTFE coating on the spiral flutes actively resists adhesive and resin contamination common when drilling chipboard and coated panels, allowing longer runs between cleanings and maintaining consistent bore diameter throughout a production shift.
- The 15mm diameter matches one of the most common dowel sizing standards used in flat-pack and frameless cabinet construction, making this drill a direct-fit replacement for standard CNC boring programs without requiring spindle reprogramming.
Specifications
- Manufacturer Part Number: 310.150.12
- Brand: CMT Orange Tools
- Diameter: 15mm
- Cutting Height: 27mm
- Total Length: 57.5mm
- Shank: 10 x 27mm (parallel shank with driving flat and length-adjusting screw)
- Number of Flutes: 2
- Number of Spurs: 2
- Number of Cutting Edges: 2
- Blade Material: HW (Tungsten Carbide)
- Sharpening: Negatively ground spurs
- Rotation: Left-Hand (LH)
- Series: Short Series (57.5mm)
- Coating: PTFE on spiral portion (orange or black)
Approved Applications
- Blind hole drilling for dowel connections in flat-pack and cabinet assembly
- Panel drilling on multi-spindle CNC boring machines
- Furniture manufacturing - case goods, cabinet carcasses, and shelving
- Cabinet making and frameless cabinet construction
- Boring in chipboard, MDF, HDF, hardwood, softwood, plywood, laminates, and coated panels
- Left-hand spindle positions on CNC boring centers and panel processing centers
- Use with boring machines fitted with an adapter or chuck sized for 10mm shanks
Frequently Asked Questions
What machines is this dowel drill compatible with?
This drill is designed for use in multi-spindle CNC boring machines, CNC boring centers, panel processing centers, and boring machines fitted with an adapter or chuck that accepts a 10 x 27mm parallel shank. The parallel shank includes a driving flat and length-adjusting screw for secure, depth-precise mounting in these machine types.
Why is left-hand rotation important, and can I use this drill on a right-hand spindle?
Left-hand (LH) rotation means the drill is ground and fluted to cut correctly when the spindle turns counter-clockwise (from the operator's perspective). Using an LH drill on an RH spindle - or vice versa - reverses the cutting geometry, causing rubbing instead of cutting, poor chip evacuation, and damaged bore walls. This tool is intended exclusively for left-hand spindle positions.
What does "negatively ground spurs" mean for hole quality?
Negatively ground spurs are sharpened so the spur edge leads the cut at the outer diameter of the hole, scribing the material boundary cleanly before the carbide cutting edges remove the core. This geometry produces clean, chip-free bore perimeters and flat bottoms - especially important when drilling face-side panels in MDF, chipboard, laminates, and coated boards where tearout is visible in the finished product.
What is the purpose of the PTFE coating on the spiral flutes?
The PTFE coating applied to the spiral portion of the drill acts as a non-stick surface that resists pitch, resin, and adhesive - materials commonly released when boring chipboard, coated panels, and MDF. By preventing buildup in the flutes, the coating helps maintain consistent chip evacuation and bore diameter throughout extended production runs, reducing the need for frequent cleaning stops.
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