Product Description
CMT Adapter and Bushing for Twist Drill - 3.2x38mm is a precision-engineered mounting adapter designed to accept CMT twist drills onto boring machine spindles. Built to work with CMT 364-365 series tooling, this adapter features a 3.2mm bore and a 10x20mm parallel shank, making it a reliable interface component for multi-spindle boring centers and CNC boring applications in wood-based panel and solid wood processing.
Key Features
- 3.2mm precision bore diameter - accepts the corresponding twist drill with a snug, accurate fit that minimizes runout and improves hole quality in production boring operations
- 10x20mm parallel shank with driving flat - ensures secure seating in standard boring machine spindles and prevents rotation under load during drilling cycles
- 1 1/2 in. total length - provides the correct projection geometry for proper drill engagement without excessive overhang
- Compatible with CMT 364-365 series twist drills - designed as a direct-fit adapter for these specific tools, eliminating guesswork and ensuring system-matched performance
- Premium quality HWM construction with precision ground cutting interface - delivers repeatable, high-tolerance results in demanding production environments
- Precision relief design - reduces friction and heat buildup at the shank interface, extending the usable life of both the adapter and the drill it carries
Why This Product
- If you are running CMT 364-365 series twist drills, this adapter is the purpose-built solution for mounting them correctly on standard 10x20mm boring machine spindles - no improvised chucking or mismatched components needed.
- The 3.2mm bore is precision-matched to the corresponding drill shank diameter, so you get a solid, vibration-free connection that protects both the adapter and the drill during high-cycle boring operations.
- The parallel shank with driving flat locks positively into the spindle, preventing slippage that could cause off-center holes or damage expensive tooling in multi-spindle boring centers.
- At 1 1/2 in. total length with a 10x20mm shank, this adapter is sized to integrate cleanly into standard boring machine adapter systems without requiring custom setup or modifications.
Specifications
- Manufacturer Part Number: 364.032.00
- Brand: CMT Orange Tools
- Bore Diameter: 3.2mm
- Total Length: 1 1/2 in.
- Shank: 10x20mm
- Compatible Series: CMT 364-365 twist drills
Approved Applications
- Mounting twist drills on CNC boring machine spindles
- Multi-spindle boring center tooling setups
- Production drilling in chipboard, MDF, hardwood, softwood, plywood, and laminates
Frequently Asked Questions
Which twist drills is this adapter designed to work with?
This adapter is designed for use with CMT 364-365 series twist drills. It is not a universal adapter - it is specifically matched to that tool family to ensure proper fit and performance.
What is the shank size of this adapter, and will it fit my boring machine?
The adapter has a 10x20mm parallel shank with a driving flat. This is a standard boring machine spindle interface, making it compatible with multi-spindle boring centers and CNC boring machines that accept 10x20mm shanks.
What bore diameter does this adapter accept?
The bore diameter is 3.2mm, which corresponds to the matching CMT twist drill from the 364-365 series. Always verify your drill's shank diameter matches the 3.2mm bore before use.
What is the total installed length of this adapter?
The total length of the adapter is 1 1/2 in. (38mm). This determines the projection of your twist drill from the spindle face, so factor this into your boring depth and machine setup calculations.
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