Product Description
CMT Adapter and Bushing for Twist Drill - 5x38mm is a precision-engineered mounting component from CMT designed to accept 5mm bore twist drills and secure them firmly onto 10x20mm shanks for use in boring machine applications. Built to CMT's premium HWM (Hard Metal) standards, this adapter and bushing bridges the gap between twist drill bits and standard boring machine spindles, enabling accurate, repeatable drilling in wood-based panel materials, solid wood, and laminates. Whether you are equipping a CNC boring machine or a multi-spindle boring center, this adapter delivers the precision fit and secure seating that demanding production environments require.
Key Features
- 5mm Diameter Bore: precisely sized to accept 5mm shank twist drills, ensuring a snug, wobble-free fit that translates directly into clean, accurate holes in your workpiece.
- 10x20mm Parallel Shank with Driving Flat: the standardized shank dimension fits a wide range of boring machine spindles and adapter systems, while the driving flat locks the adapter in place and prevents rotation under load.
- 1 1/2 in. Total Length: a compact overall length of 1 1/2 in. keeps the tool assembly close to the spindle, reducing flex and improving hole location accuracy during multi-spindle boring operations.
- Premium HWM Construction: manufactured to CMT's premium Hard Metal quality standards, this adapter is built to withstand the repetitive stress of production boring cycles without premature wear.
- Compatible with CMT 364-365 Series: designed specifically for use with CMT 364 and 365 series twist drills, allowing you to build a coordinated, matched tooling system with confidence that components will interface correctly.
- Precision Relief Design: the precision relief geometry on the bushing maintains tight tolerances and supports consistent chip evacuation, helping to extend the working life of both the adapter and the paired twist drill.
Why This Product
- Dedicated fit for CMT boring tooling: engineered specifically for the CMT 364-365 series, this adapter eliminates the guesswork of mixing and matching components from different systems - you get a purpose-built interface that holds dimensional tolerances across the full assembly.
- Parallel shank with driving flat for positive drive: unlike smooth-shank adapters that rely solely on clamping force, the driving flat mechanically locks the adapter in the spindle, reducing the risk of slippage during high-cycle boring runs in chipboard, MDF, hardwood, or laminated panels.
- Compact 1 1/2 in. length for tight boring center configurations: the short overall length is suited to multi-spindle boring centers where tool-to-tool clearance is limited, making this a practical choice for densely packed spindle heads.
- Premium HWM quality for production reliability: the hard metal construction means this adapter can support the sustained, repetitive demands of cabinetry, furniture, and panel processing lines without compromising concentricity or fit over time.
Specifications
- Manufacturer Part Number: 364.050.00
- Brand: CMT Orange Tools
- Product Type: Adapter and Bushing for Twist Drill
- Diameter Bore: 5mm
- Total Length: 1 1/2 in.
- Shank: 10x20mm
- Compatible Series: CMT 364-365 Twist Drills
Approved Applications
- Mounting 5mm bore twist drills on boring machine spindles
- CNC boring machine tooling assemblies
- Multi-spindle boring center configurations
- Drilling in chipboard and particleboard
- Drilling in MDF panels
- Drilling in hardwood and softwood
- Drilling in plywood and laminated panels
Frequently Asked Questions
Which twist drill series is this adapter designed to work with?
This adapter and bushing is designed for use with the CMT 364 and 365 series twist drills. It is not a universal adapter and is intended specifically for those CMT boring tool series to ensure a precision-fit interface.
What is the shank size of this adapter, and what machines will it fit?
The adapter has a 10x20mm parallel shank with a driving flat. This shank format is compatible with standard boring machine spindles and multi-spindle boring centers that accept a 10mm diameter shank. The driving flat provides a mechanical lock to prevent rotation under load.
What bore diameter does this adapter accept, and which twist drill does that correspond to?
The bushing bore diameter is 5mm. This means it is sized to accept a 5mm shank twist drill from the compatible CMT 364-365 series. If you are working with a different diameter twist drill, you would need to select a different adapter with the corresponding bore size.
What materials can be drilled when using this adapter with a compatible CMT twist drill?
When paired with a compatible CMT 364-365 series twist drill, this adapter supports drilling operations in chipboard, MDF, hardwood, softwood, plywood, and laminated panel materials - making it well suited to furniture production, cabinetry, and panel processing applications.
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