ASSORTS R8 7/16 Inch to JT-33 Taper ARBOR Adapter Sleeve for Precision Tooling and Machining

• R8 to JT-33 Precision Adapter:
This arbor adapter is designed for milling machines equipped with an R8 spindle, such as Bridgeport and standard vertical mills. It allows your machine to seamlessly connect with drill chucks featuring a JT-33 (Jacobs Taper 33) bore.

• 7/16" × 20 UNF Drawbar Thread:
The rear end includes a standard 7/16" × 20 UNF drawbar thread, which perfectly matches most R8 spindle drawbars. This ensures the arbor locks securely inside the spindle, preventing tool slippage during operation.

• Accurate JT-33 Taper Mounting:
The JT-33 taper is commonly used for high-precision drill chucks that require excellent stability. Its snug-fit design eliminates play, ensuring accurate drilling and improved surface finish.

• Industrial-Strength Alloy Steel:
Manufactured from premium alloy steel, the adapter is hardened and precision ground to withstand demanding machining conditions while maintaining long-term dimensional accuracy.

• Minimum Run-Out & Low Vibration:
Thanks to tight manufacturing tolerances and precision grinding, the arbor delivers minimal run-out and reduced vibration, resulting in more precise results and longer cutting tool life.

• Versatile Workshop Solution:
Suitable for metalworking, fabrication, and precision woodworking, this adapter provides a reliable interface for mounting JT-33 drill chucks, specialized arbors, and compatible accessories.

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