Assorts Milling Machine Arbor, R8 Shank, 7/16 UNF Drawbar Thread, MT-3 Bore Taper Sleeve for Precision Machining

• R8 to MT3 Precision Transition:
This arbor is designed for milling machines with an R8 spindle, such as Bridgeport and similar vertical mills. It allows you to use Morse Taper 3 (MT3) tools and arbors directly in an R8 spindle, expanding your machine’s tooling compatibility.

• 7/16" × 20 UNF Drawbar Thread:
The top end features a standard 7/16" × 20 UNF drawbar thread, which matches most R8 spindle drawbars. This securely pulls the adapter into the spindle, ensuring the tool remains firmly locked during operation.

• MT3 Internal Bore:
The internal bore is Morse Taper 3 (MT3), allowing the adapter to hold MT3 drill chucks, end mill holders, and larger drill bits. This significantly increases the versatility of your milling machine.

• Hardened & Precision Ground for Accuracy:
The adapter is hardened and precision ground to industrial standards, helping minimize run-out and vibration. This ensures high accuracy during milling and drilling operations, even at higher speeds.

• Robust Alloy Steel Construction:
Manufactured from premium tool steel, the arbor is built to withstand heavy torque and industrial vibration without deformation, ensuring long-term durability and reliable performance.

• Essential Workshop Tool:
This adapter is an essential accessory for machinists who want to operate both R8 and MT3 tooling on the same machine, saving time and cost while increasing workshop efficiency.

Dispatch Time: 1–2 business days
International Delivery: 5–12 business days (location-wise)
Tracking: End-to-end international tracking available
Packaging: Shockproof & secure export packaging
Customs/Duties: May apply based on destination country
Carrier: DHL / FedEx / UPS (depending on region)

Warranty: 6–12 months (manufacturing defects only)
Returns: Accepted for defective, damaged, or incorrect items
Return Window: 7 days from delivery
Replacement: Free replacement for eligible claims
Process: Email support with product video/photos
Note: Used/damaged by customer items not returnable

Read the user manual before first use

Wear safety gloves & eye protection when required

Keep away from children

Do not overload or misuse the product

Store in a dry, moisture-free environment

Clean tools after use to maintain performance