Product Description
CMT 365.040.00 Bushing for Twist Drill by CMT is a precision-ground mounting bushing designed to securely seat CMT 363 solid carbide twist drills into CMT 364 adapters, enabling accurate, repeatable hole-boring on CNC boring machines and multi-spindle boring centers. With a 4mm bore diameter, 23mm total length, and a 10mm shank, this compact bushing delivers a snug, play-free fit that keeps twist drills properly aligned during high-volume production drilling operations.
Key Features
- 4mm Bore Diameter - matches the shank of compatible CMT 363 solid carbide twist drills precisely, eliminating wobble and ensuring clean, accurate bores in finished workpieces.
- 23mm Total Length - provides enough engagement depth to stabilize the twist drill within the adapter assembly, reducing vibration and improving hole quality during boring machine operations.
- 10mm Shank - sized to interface correctly with CMT 364 adapters, allowing the complete bushing-and-adapter system to mount directly onto boring machine spindles without modification.
- Precision-Ground Construction - tight tolerances on all mating surfaces mean consistent, repeatable positioning every time the bushing is installed or swapped, which is critical in multi-spindle production environments.
- Designed as Part of a Complete System - the CMT 365 bushing works together with the CMT 364 adapter to form a fully integrated twist drill mounting solution, simplifying setup and reducing the need for custom tooling.
Why This Product
- If you already run CMT 363 solid carbide twist drills on a boring machine, this bushing is the purpose-built interface that connects those drills to CMT 364 adapters - no improvised solutions or mismatched hardware required.
- The 4mm bore and 10mm shank are matched engineering values, meaning the bushing fits the drill and the adapter at the same time, reducing setup time and the chance of fitment errors during production changeovers.
- At 23mm total length, the bushing provides meaningful axial support for the twist drill, which directly translates to better hole straightness and longer drill life in repetitive boring applications.
- Sourced from CMT as a discrete, individually replaceable component, this bushing allows you to replace only the worn or damaged part of the mounting system rather than replacing the entire adapter assembly.
Specifications
- Manufacturer Part Number: 365.040.00
- Brand: CMT Orange Tools
- Product Type: Bushing for Twist Drill
- Bore Diameter: 4mm
- Total Length: 23mm
- Shank: 10mm
- Compatible Drills: CMT 363 Solid Carbide Twist Drills
- Compatible Adapters: CMT 364 Adapters
Approved Applications
- CNC Boring Machine spindle mounting
- Multi-Spindle Boring Center tooling setups
- Production cabinet and furniture boring operations requiring precise hole placement
Frequently Asked Questions
Which twist drills is this bushing compatible with?
The CMT 365.040.00 bushing is designed specifically for use with CMT 363 solid carbide twist drills. Its 4mm bore diameter is matched to the shank size of those drills to ensure a secure, accurate fit.
Do I need an adapter in addition to this bushing?
Yes. This bushing is intended to be used together with a CMT 364 adapter. The bushing seats the twist drill, and the adapter mounts the assembly onto the boring machine spindle - both components are required for a complete installation.
What machines is this bushing designed for?
The CMT 365.040.00 is designed for use on CNC boring machines and multi-spindle boring centers where CMT 363 twist drills are mounted via CMT 364 adapters.
What are the key dimensions of this bushing?
The bushing has a 4mm bore diameter to accept the compatible twist drill, a 10mm shank that interfaces with the CMT 364 adapter, and a total length of 23mm to provide stable axial support during drilling operations.
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