CMT 368.070.11 Dowel Drill for Through Holes by CMT is a precision-ground, carbide-tipped boring bit engineered for clean, full-penetration holes in panels and solid wood. With a 7mm (9/32 in.) cutting diameter, a 43mm (1 11/16 in.) cutting height, and a 70mm (2 3/4 in.) overall length, this long-series through-hole drill is built for applications where the bit must pass completely through the workpiece - making it the right choice for cabinet assembly, shelf-pin boring, and dowel-joint production on thick panel stock. Right-hand rotation and a precision 8x20mm parallel shank with driving flat ensure reliable seating in multi-spindle CNC boring machines and panel processing centers.

Key Features

• Tungsten Carbide (HW) Cutting Tips - hard-metal carbide construction holds a sharp edge far longer than high-speed steel, reducing regrind frequency and downtime in production environments.
• Long-Series Through-Hole Geometry (43mm cutting height) - the extended cutting length allows the bit to bore fully through thick panels in a single plunge, eliminating the need for two-sided boring setups and speeding up cycle times.
• 2-Flute Design - dual flutes evacuate chips efficiently from the bore as the drill advances, reducing heat buildup and keeping hole walls clean in chipboard, MDF, HDF, hardwood, and laminated panels.
• Right-Hand (RH) Rotation - matches the standard spindle direction of multi-spindle CNC boring machines and boring centers, allowing direct drop-in replacement without spindle reconfiguration.
• 60 deg. Through-Hole Sharpening Geometry - the point angle is optimized for penetrating all the way through the material, producing a clean entry and exit without excessive breakout on coated or laminated surfaces.
• 8x20mm Parallel Shank with Driving Flat - the flat on the shank locks positively against the set screw in the spindle housing, preventing rotation slip under load and maintaining consistent hole position across high-volume runs.

Why This Product

• The 43mm cutting height makes this bit specifically suited for boring through-holes in thick panel stock where standard short-series dowel drills cannot reach - no repositioning, no two-pass boring.
• Tungsten carbide (HW) construction handles abrasive composite materials like MDF, chipboard, and laminates without the rapid dulling that affects lesser tool materials, keeping bore quality consistent across long production runs.
• The 8x20mm shank with driving flat is a direct fit for the spindle format used in multi-spindle CNC boring machines and panel processing centers, making this a practical, drop-in production tool rather than a special-setup item.
• With a 60 deg. through-hole point geometry and a 2-flute chip-clearing design, this bit is built to deliver clean entry and exit holes in both raw and coated panels - reducing sanding and finishing time after boring.

Specifications

• Manufacturer Part Number: 368.070.11
• Brand: CMT Orange Tools
• Diameter: 7mm (9/32 in.)
• Cutting Height: 43mm (1 11/16 in.)
• Total Length: 70mm (2 3/4 in.)
• Shank: 8x20mm
• Number of Flutes: 2
• Rotation: Right-Hand (RH)
• Blade Material: HW (Tungsten Carbide)
• Sharpening Geometry: Through holes 60
• Product Type: Dowel Drill for Through Holes - Long Series

Approved Applications

• Chipboard and particle board panels
• MDF (medium-density fiberboard)
• HDF (high-density fiberboard)
• Solid hardwood and softwood
• Plywood
• Laminates and coated panels
• Through-hole dowel joinery in cabinet and furniture production
• Shelf-pin and hardware-insert boring on thick panel stock