Product Description
CMT Adapter and Bushing for Twist Drill - 4mm Bore, 10x20mm Shank is a precision-engineered mounting adapter designed to accept CMT twist drills on boring machine spindles. With a 4mm bore diameter and a 10x20mm parallel shank with driving flat, this bushing is built to deliver repeatable, accurate positioning for woodworking professionals who demand consistency across high-volume drilling operations on CNC boring machines and multi-spindle boring centers.
Key Features
- 4mm Bore Diameter - accepts a 4mm twist drill with a precision fit, minimizing runout and ensuring clean, accurate holes in panel materials and hardwoods alike.
- 10x20mm Parallel Shank with Driving Flat - designed to seat securely in standard boring machine spindle chucks, preventing rotation during high-speed operation for a safe and stable drilling setup.
- 1 1/2 in. Total Length - compact form factor allows use in tight multi-spindle configurations without interference between adjacent spindles.
- Compatible with CMT 364-365 Series Twist Drills - purpose-built for use with matching CMT twist drill bits, ensuring dimensional compatibility and eliminating guesswork when building out a boring machine setup.
- Premium Quality HWM Construction - high-quality material composition supports durability in repeated insertion-and-removal cycles common in production environments.
- 2 Precision Ground Cutting Edges (Z2) with 2 Spiral Flutes - when paired with compatible CMT twist drills, the system delivers efficient chip evacuation and clean entry points in chipboard, MDF, plywood, laminates, hardwood, and softwood.
- Precision Relief Ground Finish - reduces friction and heat buildup at the bushing interface, extending service life in continuous-use boring machine applications.
Why This Product
- Woodworkers and shop operators running CNC boring machines or multi-spindle boring centers need adapters that mount quickly and hold true - this bushing provides a precision-fit interface between the 4mm twist drill and the 10x20mm spindle, eliminating slop that leads to off-location holes.
- The parallel shank with driving flat locks the adapter in place rotationally, which is critical in production runs on panel materials like chipboard, MDF, and laminates where consistent hole placement directly affects assembly quality.
- Purpose-built compatibility with CMT 364-365 series twist drills means this adapter is engineered to spec alongside the cutting tool - not a generic aftermarket fit - so dimensional tolerances are maintained throughout the system.
- At 1 1/2 in. total length with a compact 10x20mm shank, this adapter fits within the space constraints of multi-spindle boring centers without requiring spindle reconfiguration or custom spacers.
Specifications
- Manufacturer Part Number: 364.040.00
- Brand: CMT Orange Tools
- Bore Diameter: 4mm
- Total Length: 1 1/2 in.
- Shank: 10x20mm
Approved Applications
- Mounting CMT 364-365 series twist drills on CNC boring machine spindles
- Multi-spindle boring center setups for panel drilling
- Drilling chipboard, MDF, hardwood, softwood, plywood, and laminates
Frequently Asked Questions
Which CMT twist drills is this adapter compatible with?
This adapter and bushing is designed for use with CMT 364-365 series twist drills. It is not a universal adapter - it is purpose-built to accept twist drills that match the 4mm bore specification.
What shank size does this adapter use, and will it fit my boring machine?
The adapter uses a 10x20mm parallel shank with a driving flat. This shank format is standard on CNC boring machines and multi-spindle boring centers that accept 10mm spindle tooling.
What is the total length of this adapter?
The total length is 1 1/2 in. (38mm). This compact length is suited for multi-spindle configurations where clearance between adjacent spindles is a consideration.
What materials can I drill with a CMT twist drill mounted in this adapter?
When paired with a compatible CMT twist drill, this adapter system supports drilling in chipboard, MDF, hardwood, softwood, plywood, and laminates - common panel and solid wood materials used in furniture and cabinet production.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.