Products for bench top machinists | LittleMachineShop.com

Collet Chuck, ER-32, R8, Professional Grade

Collet Chuck, ER-32, R8, Professional Grade - Main image
Collet Chuck, ER-32, R8, Professional Grade - View 2Collet Chuck, ER-32, R8, Professional Grade - View 3
$74.77 $109.95 In stock

R8 to ER-32 professional grade collet chuck. Premium 20CrMnTi alloy steel hardened and all ground body for extended tool life. Has a superior finish (electrolysis nickel coating).
The maximum RPM is 8,000 and the maximum runout is 0.0003" (0.0076 mm). The R8 drawbar thread is 7/16"-20.
ER-32 collets have a range of 1/16" to 13/16" (1.0 mm to 21.0 mm).
*Collet must be assembled into a collet chuck nut before inserting into the collet chuck.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Olivia ★★★★★

The body on this R8 to ER-32 chuck is ground perfectly smooth, and it clamped down on my end mill shank with zero runout. I've been using it on my Bridgeport clone and it holds tools securely even at high spindle speeds.

Joshua Y. ★★★★★

The electrolysis nickel coating feels like a huge upgrade over the bare steel chucks I've used before, and the hardened alloy body gives me confidence it'll hold up for years. Zero runout so far in my first few test cuts.

Natalie F. ★★★★★

Finally got this collet chuck mounted on my mill, and the electrolysis nickel coating makes it incredibly easy to wipe clean after use. The hardened body feels solid, and with the 8,000 RPM max rating, I’m confident it’ll handle my steel cutting jobs without any issues.