Product Description
CMT Bushing for Twist Drill - 1/8 in. Bore Diameter is a precision-ground mounting component from CMT, designed to securely seat CMT 363 solid carbide twist drills within CMT 364 adapters for use on boring machine spindles. With a 3mm bore diameter, a 10mm shank, and a total length of 23mm, this bushing delivers a stable, accurate fit that keeps twist drill bits properly centered during operation - reducing runout and supporting clean, repeatable hole patterns on CNC boring machines and multi-spindle boring centers alike.
Key Features
- 3mm bore diameter (equivalent to 1/8 in.) - matches the shank size of CMT 363 solid carbide twist drills precisely, ensuring a secure, wobble-free fit during boring operations.
- 10mm shank diameter - interfaces directly with CMT 364 adapters, allowing the bushing and drill assembly to mount cleanly onto standard boring machine spindles without modification.
- 23mm total length - provides sufficient engagement depth to hold the twist drill firmly while keeping the overall assembly compact within multi-spindle boring center configurations.
- Precision-ground construction - supports accurate hole placement and consistent depth control, which is critical for furniture production, cabinet assembly, and other applications demanding repeatable boring results.
- Designed for use with CMT 364 adapters - integrates as part of a complete, purpose-built twist drill mounting system, eliminating guesswork about compatibility and reducing setup time.
Why This Product
- If you are already running CMT 363 solid carbide twist drills on a CNC boring machine or multi-spindle boring center, this bushing is the dedicated component that completes the mounting system - no adapting, no improvising.
- The 3mm bore and 10mm shank dimensions are purpose-matched to the CMT 363 and CMT 364 system, meaning the bushing seats correctly the first time and holds its position under repeated use.
- At 23mm total length, the bushing keeps the drill mounting assembly efficient and space-conscious, which matters in tight spindle configurations on multi-spindle boring centers.
- Sourcing a bushing that is factory-spec for your CMT drill system - rather than a generic alternative - supports consistent hole quality and reduces the risk of premature wear on both the drill bit and the adapter.
Specifications
- Manufacturer Part Number: 365.030.00
- Brand: CMT Orange Tools
- Product Type: Bushing for Twist Drill
- Bore Diameter: 3mm (1/8 in.)
- Total Length: 23mm
- Shank: 10mm
- Compatible Drills: CMT 363 Solid Carbide Twist Drills
- Compatible Adapters: CMT 364 Adapters
Approved Applications
- CNC Boring Machine
- Multi-Spindle Boring Center
Frequently Asked Questions
Which drill series is this bushing designed to work with?
This bushing is designed specifically for use with CMT 363 solid carbide twist drills. It works in conjunction with CMT 364 adapters to mount those drills onto boring machine spindles.
What is the bore diameter of this bushing?
The bore diameter is 3mm, which corresponds to a 1/8 in. twist drill shank. This measurement is precisely matched to the CMT 363 drill series for a secure, accurate fit.
Do I need a separate adapter to use this bushing on a boring machine spindle?
Yes. This bushing (CMT 365 series) is used together with a CMT 364 adapter. The two components work as a system to mount the CMT 363 twist drill onto the spindle of a CNC boring machine or multi-spindle boring center.
What are the key dimensions of this bushing?
The bushing has a 3mm bore diameter, a 10mm shank diameter, and a total length of 23mm. These dimensions are fixed for this model and are designed to integrate precisely within the CMT 364 adapter and CMT 363 drill system.
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