Product Description
CMT Dowel Drill 3/8" - 2 Flute, 40mm Cutting Height, 67mm Overall Length, Right-Hand Rotation is a precision carbide-tipped boring tool engineered for clean, accurate blind-hole drilling in solid wood, chipboard, MDF, and coated panels. Featuring a hardmetal (HW) cutting head mounted on a super-strength steel body, this 3/8 in. diameter dowel drill delivers the flat-bottomed, burr-free holes required for tight-fitting dowel joinery in furniture manufacturing, cabinet making, and panel processing. The right-hand (RH) rotation and 8x20mm parallel shank make it compatible with multi-spindle boring machines and CNC boring centers used in high-volume production environments.
Key Features
- HW (Hardmetal/Tungsten Carbide) Cutting Head on Super-Strength Steel Body - the carbide tip maintains a sharp cutting edge through repeated production runs, reducing downtime for tool changes and delivering consistent bore quality across engineered wood, solid hardwood, and laminate materials.
- 2 Precision-Ground HW Cutting Edges (Z2) - dual cutting edges produce a smooth, flat-bottomed hole in a single plunge, which is essential for proper dowel seating and flush panel assembly without secondary cleanup.
- 2 Negatively Ground Spurs (V2) - the negatively sharpened spurs score the material cleanly ahead of the cutting edges, preventing chip-out and tearout on the bore perimeter, so both faces of coated panels and laminates remain clean.
- Precision-Balanced Centre Point - the accurately ground centre point registers instantly on the workpiece, eliminating bit walk at the start of the bore and ensuring hole placement stays on target in multi-hole drilling layouts.
- 3/8 in. (9.525mm nominal) Diameter with 40mm Cutting Height - the 40mm cutting depth accommodates medium-series panel thicknesses that require deeper blind holes than short-series drills can reach, expanding the range of dowel joint configurations possible without changing tooling.
- 8x20mm Parallel Shank - the standardized shank with driving flat seats securely in multi-spindle machine chucks and boring center tool holders, providing firm torque transfer and repeatable positioning cycle after cycle.
- Right-Hand (RH) Rotation - matches the standard spindle direction of the vast majority of CNC and mechanical boring machines, making this drill a direct drop-in for common production setups without spindle reconfiguration.
Why This Product
- The combination of 2 negatively ground spurs and 2 precision-ground HW cutting edges means chipboard, MDF, and laminate surfaces are scored cleanly before material is removed - producing hole walls and entrances that require no sanding or touch-up before assembly.
- At 67mm overall length with a 40mm cutting height, this medium-series drill reaches boring depths that short-series bits cannot achieve, giving furniture and cabinet producers the flexibility to drill deeper blind holes for longer dowels and stronger joints.
- The hardmetal cutting head is built to withstand the abrasive nature of engineered panels like MDF and coated chipboard, materials that rapidly dull standard high-speed steel drills - making this tool a longer-lasting, more cost-effective choice for high-cycle production.
- The precision-balanced centre point and standardized 8x20mm shank work together to deliver consistent hole-to-hole accuracy across an entire panel, which is critical for dowel-based casework where even small positional errors cause misalignment during assembly.
Specifications
- Manufacturer Part Number: 307.095.11
- Brand: CMT Orange Tools
- Diameter: 3/8 in.
- Cutting Height: 40mm
- Total Length: 67mm
- Shank: 8x20mm
- Number of Spurs: 2
- Number of Teeth (Cutting Edges): 2
- Sharpening: Negatively ground spurs
- Blade Material: HW (Hardmetal - Tungsten Carbide)
- Rotation: Right-Hand (RH)
Approved Applications
- Blind hole drilling for dowel connections
- Panel drilling in furniture manufacturing
- Cabinet making and casework production
- Drilling solid hardwood and softwood
- Boring chipboard, MDF, and HDF panels
- Processing plywood and coated laminate panels
- Multi-spindle CNC boring machine operations
- CNC boring center and panel processing center applications
Frequently Asked Questions
What type of sharpening do the spurs on this dowel drill use, and why does it matter?
The spurs are negatively ground, meaning they are sharpened at an angle that scores the material boundary cleanly ahead of the main cutting edges. This prevents fiber pullout and surface tearout at the rim of the hole - a critical advantage when boring chipboard, laminate-coated panels, and MDF where clean entry and exit are required for a finished appearance without additional sanding.
Is this dowel drill compatible with standard multi-spindle boring machines?
Yes. The 8x20mm parallel shank with driving flat is a widely used standard dimension that seats directly in the tool holders of multi-spindle CNC boring machines, CNC boring centers, and panel processing centers. The right-hand (RH) rotation matches the standard spindle direction on these machines without requiring any adapter or special configuration.
What is the difference between the cutting height and the total length of this drill?
The cutting height of 40mm is the usable depth the fluted portion of the drill can bore into the workpiece - this is the maximum blind hole depth achievable in a single plunge. The total length of 67mm includes the 8x20mm shank that interfaces with the machine, plus the cutting body. When selecting a dowel drill, the cutting height - not the total length - determines the maximum dowel hole depth.
What materials is this 3/8 in. dowel drill designed to bore?
This drill is designed for boring blind holes in solid hardwood and softwood, chipboard, MDF, HDF, plywood, and coated or laminate-surfaced panels. The hardmetal (HW) cutting head is specifically suited to the abrasive nature of engineered wood products like MDF and chipboard, which wear down standard steel tooling far more rapidly than solid wood does.
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