CMT 314.030.21 Solid Carbide Dowel Drill for Through Holes by CMT is a precision-engineered 3mm boring bit designed for clean, accurate through-hole drilling in hardwood, MDF, particle board, veneered panels, and coated composites. With a 27mm cutting height and 70mm total length, this right-hand rotation drill is built for demanding production environments including high-speed multi-spindle boring units and CNC machining centers. The solid super-micrograin carbide body delivers exceptional wear resistance, making it a long-lasting solution for furniture manufacturing, panel processing, and dowel joinery applications where hole quality and repeatability are critical.

Key Features

• Solid super-micrograin carbide (HWM) construction - provides extreme wear resistance and supports an almost infinite number of resharpenings, delivering long-term value in high-volume production settings.
• Unique curved, negatively ground spurs at the tip - produce exceptionally clean bore walls and smooth entry points with no rough edges or tearout, even in veneered and coated panels.
• Centre-balanced point design - ensures accurate hole positioning and consistent drilling performance, reducing scrap and rework during panel processing.
• Plunge edge extending to the centre of the bit - reduces drilling resistance and increases production speed, helping operators maintain throughput on busy boring lines.
• 2 precision-ground cutting edges (Z2) with a double angle and 2 spiral flutes - efficiently clear chips from the bore, preventing clogging and maintaining cut quality across hardwood and difficult composites such as MDF and particle board.
• Cylindrical head larger than traditional tips - offers exceptional resistance to prolonged use, extending the interval between sharpenings and reducing downtime.
• "V" Point 60 deg. geometry - optimized for through-hole boring, providing a clean entry and controlled exit to minimize blowout on the opposite face.
• Premium-quality steel shank (10x30mm) with driving flat and adjustable screw length - ensures secure tool holding in multi-spindle boring machines, CNC boring centers, and panel processing equipment.
• Right-hand (RH) rotation - compatible with standard boring machine spindles used in furniture and cabinet manufacturing.
• Rated for extreme sharpening - the solid carbide unit can be resharpened repeatedly without sacrificing structural integrity, making it safer and more cost-effective than tipped alternatives.

Why This Product

• The 3mm diameter and 27mm cutting height make this drill specifically suited for through-hole dowel connections in panels, covering common furniture panel thicknesses while delivering the clean exit holes that dowel joinery demands.
• The solid HWM super-micrograin carbide body is made entirely from premium carbide - not just tipped - meaning every resharpening restores a full carbide cutting edge, providing consistent performance and added safety over the life of the tool.
• Negatively ground curved spurs and a centre-balanced point work together to produce bore quality compatible with veneered and coated surfaces, where tearout or rough edges would mean rejected parts and lost production time.
• With performance verified on high-speed boring units and CNC routers, this bit is engineered for the pace of professional panel processing and furniture manufacturing - not just occasional shop use.

Specifications

• Manufacturer Part Number: 314.030.21
• Brand: CMT Orange Tools
• Diameter: 3mm
• Cutting Height: 27mm
• Total Length: 70mm
• Shank: 10x30mm
• Number of Cutting Edges: 2
• Rotation: Right-hand (RH)
• Body Material: HWM (solid super-micrograin carbide)
• Point Geometry: "V" Point 60 deg.
• Sharpening Rating: Extreme
• Application Type: Through Hole

Approved Applications

• Through-hole drilling for dowel connections in furniture and cabinet assembly
• Panel processing in manufacturing environments
• Boring in hardwood, softwood, particle board, MDF, and veneered wood
• Through-hole operations on coated panels and difficult composites
• High-speed multi-spindle boring machine operations
• CNC router and CNC boring center applications