CMT 310.530.22 Dowel Drill - 1/8" x 23/64" x 2-17/64" Left-Hand by CMT is a precision-engineered, solid carbide boring bit designed for clean, accurate blind-hole drilling in panel processing and cabinet production environments. Built to left-hand (LH) rotation specifications, this short-series dowel drill integrates directly with multi-spindle CNC boring machines and panel processing centers, delivering repeatable bore quality in solid wood, chipboard, MDF, laminates, and coated panels. Its compact 57.5mm total length and 10x35mm parallel shank make it a reliable fit for high-production doweling and assembly applications where consistency and long tool life are essential.

Key Features

• Solid Carbide (HWM) Construction - the entire drill body is made from premium super-micrograin carbide, providing exceptional wear resistance so the bit holds its edge through high-volume production runs and supports an extended resharpening life, reducing long-term tooling cost.
• Left-Hand (LH) Rotation - engineered specifically for left-hand spindle positions on multi-spindle CNC boring machines and boring centers, ensuring proper chip evacuation and clean entry on the correct side of the workpiece without requiring adapter modifications.
• 2-Flute, 2-Spur Geometry - dual flutes paired with two precision-ground spurs score the perimeter of the bore before the center removes material, producing flat-bottom holes with clean walls and virtually no tearout - critical for dowel joint quality and laminate face integrity.
• 3mm Cutting Diameter with 9mm Cutting Height - the compact cutting zone targets standard dowel bore sizing while the 9mm cutting depth accommodates typical blind-hole requirements in panel stock, giving consistent depth control across the full production run.
• 10x35mm Parallel Shank with Driving Flat - the robust parallel shank seats securely in boring machine spindles and adapter chucks, transmitting torque reliably and minimizing runout for accurate, repeatable bore placement across every panel.
• Extreme Sharpening Rating - the carbide grade and geometry are rated for extreme resharpening cycles, meaning the drill can be professionally reground multiple times before retirement, lowering the cost-per-bore over its full service life.
• PTFE Coating - the non-stick coating resists pitch and adhesive buildup from MDF resins, laminates, and coated panels, keeping the cutting edges clear and reducing downtime spent cleaning tooling between production cycles.

Why This Product

• Purpose-built for left-hand spindle positions - cabinet shops and panel processors running multi-spindle CNC boring machines need LH-rotation bits for specific spindle banks. This drill is correctly configured from the ground up for those positions, eliminating the guesswork of adapting a right-hand bit.
• Carbide construction extends service intervals - where high-speed steel boring bits wear quickly in abrasive MDF and chipboard, the solid carbide body of this drill retains sharpness far longer, reducing tool change frequency and keeping production lines moving.
• Clean bores in challenging panel materials - the 2-spur geometry is specifically suited to laminate, coated panels, and composite boards where splintering at the bore entry is a rejection risk. The scored perimeter cut prevents delamination and tearout on finished face materials.
• Short-series form factor fits tight spindle arrays - at 57.5mm total length, this drill fits the compact spindle-to-spindle spacing found on multi-row boring heads without interference, making it directly compatible with standard panel boring center configurations.

Specifications

• Manufacturer Part Number: 310.530.22
• Brand: CMT Orange Tools
• Product Type: Dowel Drill
• Nominal Diameter: 1/8" (3mm)
• Cutting Height: 23/64" (9mm)
• Total Length: 2 17/64" (57.5mm)
• Shank: 10x35mm
• Number of Flutes: 2
• Number of Spurs: 2
• Rotation: Left-Hand (LH)
• Blade Material: Solid Carbide (HWM)
• Sharpening Rating: Extreme
• Series: Short Series (57.5mm)

Approved Applications

• Chipboard and particleboard panel boring
• MDF and HDF drilling
• Hardwood and softwood dowel hole production
• Plywood boring
• Laminate and coated panel processing
• Blind-hole dowel joint production
• Multi-spindle CNC boring machine operations
• CNC boring center applications
• Panel processing center production lines
• Boring machine with adapter or chuck setups