CMT Adapter and Bushing for Twist Drill - 2x38mm is a precision-engineered mounting solution designed to accept CMT twist drills onto boring machine spindles with accuracy and reliability. Built to work with CMT 364-365 series twist drills, this adapter features a 10x20mm parallel shank with a driving flat that locks securely into standard boring machine chucks and multi-spindle boring centers. Whether you are drilling chipboard, MDF, hardwood, softwood, plywood, or laminates, this bushing keeps the cutting tool centered and stable for clean, repeatable results on every bore.

Key Features

• Precision-fit 2mm bore bushing - accepts CMT 364-365 series twist drills with an exact-tolerance fit, eliminating play or wobble during operation for accurate hole placement.
• 10x20mm parallel shank with driving flat - provides a positive, non-slip connection to standard boring machine spindles, reducing the risk of tool slippage under load.
• Premium quality HWM (hard metal) construction - delivers long tool life and dimensional stability under the repetitive demands of production boring operations.
• 2 precision ground cutting edges (Z2) with 2 spiral flutes - when paired with compatible twist drills, enables efficient chip evacuation and smooth entry into a wide variety of wood-based panel materials.
• 1 1/2 in. total length - a compact profile that fits within the working clearances of CNC boring machines and multi-spindle boring centers without sacrificing reach.
• Precision relief geometry - reduces friction and heat buildup at the cutting zone, supporting cleaner bore walls and extended drill service life.

Why This Product

• Designed specifically for CMT 364-365 series twist drills, this adapter provides a direct, manufacturer-matched fit rather than a generic workaround - keeping your boring setup aligned and consistent across production runs.
• The parallel shank with driving flat on the 10x20mm shank connects directly to standard boring machine spindle systems, making this adapter compatible with a broad range of CNC boring machines and multi-spindle boring centers without modification.
• With a 2mm bore diameter and precision relief design, the bushing holds the twist drill concentrically, which is critical when boring into chipboard, MDF, plywood, and laminates where hole position accuracy directly affects assembly quality.
• At a compact 1 1/2 in. total length, this adapter keeps the drill close to the spindle nose for improved rigidity - reducing deflection and vibration that can cause oversize or off-center holes in panel processing applications.

Specifications

• Manufacturer Part Number: 364.020.00
• Brand: CMT Orange Tools
• Diameter Bore: 2mm
• Total Length: 1 1/2 in.
• Shank: 10x20mm
• Compatible Series: CMT 364-365 twist drills
• Number of Cutting Edges: 2 (Z2)
• Number of Flutes: 2 spiral flutes
• Shank Style: Parallel shank with driving flat

Approved Applications

• Mounting CMT 364-365 series twist drills on boring machine spindles
• CNC boring machine operations
• Multi-spindle boring center setups
• Boring into chipboard and particleboard panels
• Drilling MDF and high-density fiberboard
• Hardwood and softwood boring applications
• Plywood and laminate panel processing