Product Description
CMT Adapter and Bushing for Twist Drill - 2.5x38mm is a precision-engineered mounting adapter designed to accept CMT twist drills onto standard boring machine spindles. Part of the CMT 364-365 adapter system, this bushing features a 2.5mm bore diameter and a 10x20mm parallel shank with a driving flat, making it a reliable interface between twist drill bits and multi-spindle boring centers or CNC boring equipment. The 1 1/2 in. total length keeps the assembly compact while maintaining rigidity during drilling operations in wood-based panel materials.
Key Features
- 2.5mm precision bore diameter - accepts CMT 363-365 series twist drills with a secure, close-tolerance fit that minimizes runout and supports accurate hole placement
- 10x20mm parallel shank with driving flat - provides a positive, slip-resistant connection to standard boring machine spindles, preventing rotation under load
- 1 1/2 in. total length - compact profile keeps the drill assembly close to the spindle head, improving stability and reducing vibration during operation
- Premium quality HWM construction - delivers long service life in production environments where consistent dimensional accuracy is required across high-volume boring cycles
- Compatible with CMT 364-365 series items - integrates directly into an existing CMT boring system without the need for additional adapters or modifications
- Precision relief and 2 precision ground cutting edges (Z2) with 2 spiral flutes - engineered for clean, repeatable hole quality in chipboard, MDF, hardwood, softwood, plywood, and laminates
Why This Product
- Designed specifically for use with CMT 364-365 series twist drills, this adapter provides a verified, system-matched connection - eliminating compatibility guesswork when equipping a multi-spindle boring center or CNC boring machine
- The parallel shank with driving flat locks securely into standard 10mm spindle chucks, ensuring the drill bit stays fixed under repeated production loads without slipping or shifting
- The 2.5mm bore is precision-ground to match CMT twist drill shanks exactly, supporting accurate hole positioning in furniture panels, cabinet components, and laminated sheet goods
- The compact 1 1/2 in. total length maximizes clearance in tight spindle configurations while keeping the cutting end stable - especially useful on densely packed multi-spindle heads
Specifications
- Manufacturer Part Number: 364.025.00
- Brand: CMT Orange Tools
- Bore Diameter: 2.5mm
- Total Length: 1 1/2 in.
- Shank: 10x20mm
- Compatible Series: CMT 364-365
Approved Applications
- Mounting CMT 363-365 series twist drills on boring machine spindles
- CNC boring machine operations
- Multi-spindle boring center applications
- Drilling chipboard, MDF, hardwood, softwood, plywood, and laminates
Frequently Asked Questions
Which drill series is this adapter compatible with?
This adapter and bushing is designed for use with CMT 364-365 series twist drills. The 2.5mm bore diameter corresponds to matching CMT twist drill shank sizes within that product family.
What shank size does this adapter use, and will it fit standard boring machine spindles?
The adapter uses a 10x20mm parallel shank with a driving flat. This configuration fits standard boring machine spindle chucks commonly found on CNC boring machines and multi-spindle boring centers.
What is the total installed length of this adapter?
The total length of this adapter is 1 1/2 in. (38mm). This compact dimension is intended to minimize protrusion from the spindle head while maintaining a stable connection to the mounted twist drill.
What materials can be drilled when using this adapter with compatible CMT twist drills?
When paired with compatible CMT twist drills from the 364-365 series, this adapter supports drilling operations in chipboard, MDF, hardwood, softwood, plywood, and laminates - making it well suited for furniture production and cabinet panel boring applications.
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