Does this fit the Wen 3421 lathe?

If the 3421 is MT2 taper it will work.

What is the diameter of the tapered shaft?

The shaft is 5/8 inch. I needed the 1/2 inch for the small wen lathe so I returned it. I had to find another brand, the wen 1/2 in wasn't available.

Will this fit a wen 3421 mini lathe?

NO. I have the 3421, so I needed the mt1 drill chuck 1/2 inch taper.

Is the end threaded for a draw bar?

The arbor has recessed threading at the small end of the taper. It is long enough to be self-ejecting in the tail stock on my ENCO 9x20 lathe. (same design is sold by Grizzly and Jet). I understand that if you use the knock-out rod included with WEN compact lathes to remove it, the rod gets it's end fouled in the threads, sometimes jamming in the arbor and always damaging the chrome plating on the tip of the knock-out rod.

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LA164K 5/8-Inch Keyed Drill Chuck with MT2 Arbor Taper.

Product ID: 228319523

Details

Brand
WEN
Compatible Devices
Drilling
Item Diameter
0.63 Inches
Item Weight
1.11 Kilograms
Material
Chromium Steel

🔑Keyed 3-jaw secure grip

🔩5/8-inch max capacity

⚙️MT2 arbor taper fit

R1010

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Lock in precision, unlock your potential.

EFFORTLESS INSTALLATION - Tap on with a rubber mallet—no fuss, no downtime.
BUILT FOR WEN POWERHOUSES - Optimized for WEN lathe and drill press models for perfect synergy.
PRECISION GRIP ZERO SLIP - Keyed 3-jaw chuck locks bits up to 0.63 inches with rock-solid hold.
UNIVERSAL MT 2 COMPATIBILITY - Seamlessly fits any MT2 drill press, lathe, or mill for instant upgrades.
DURABLE CHROMIUM VANADIUM STEEL - Engineered to last through heavy-duty projects and daily grind.

The WEN LA164K 5/8-Inch Keyed Drill Chuck with MT2 Arbor Taper offers a robust, keyed 3-jaw design that securely holds drill bits and shafts up to 0.63 inches. Crafted from durable chromium vanadium steel, it fits any MT2 drill press, lathe, or mill and installs easily with a simple rubber mallet tap. Perfectly compatible with multiple WEN lathe and drill press models, this chuck delivers reliable performance for professional and hobbyist machinists alike.

Specifications

ASIN	B08FBKQPJX
Best Sellers Rank	#33,017 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Power Drill Chucks
Brand	WEN
Brand Name	WEN
Capacity	0.63 inches
Compatible Devices	Drilling Machine
Customer Reviews	4.7 out of 5 stars 1,324 Reviews
Global Trade Identification Number	00044459993391
Handle Type	keyed
Included Components	5/8-Inch Keyed Drill Chuck with MT2 Arbor Taper
Item Diameter	0.63 Inches
Item Type Name	5/8-Inch Keyed Drill Chuck with MT2 Arbor Taper
Item Weight	1.11 Kilograms
Lock Type	Keyed Integrated
Manufacturer	WEN
Manufacturer Part Number	LA164K
Material	Chromium Vanadium Steel
Material Type	Chromium Vanadium Steel
Model Number	LA164K
Thread Size	M21
UPC	044459993391

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