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Collet Chuck, ER-11, Straight Shank, Professional Grade

Collet Chuck, ER-11, Straight Shank, Professional Grade - Main image
$47.97 $79.95 In stock

Collet Chuck, ER-11, Straight Shank, Professional Grade
This ER-11 collet chuck straight shank tool holder is a great tool for supporting small end mills and engravers. It is made of 20CrMnTi alloy steel and is balanced to 18,000 RPM. The maximum runout is 0.0003" (0.0076 mm).
ER-11 collets have a range of 1/32" to 1/4" (0.5 to 7.0 mm). The overall length is 3.457" (88 mm) and the width at the nut is 0.748" (19 mm). Shank is 5/8".
*Collet must be assembled into a collet chuck nut before inserting into the collet chuck.

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Customer Reviews (4.8 / 5 · 5 reviews)

Ruby ★★★★★

I’ve been using this ER-11 collet chuck with straight shank for small end mills, and the 20CrMnTi alloy steel feels solid and holds bits with zero runout. It’s a noticeable upgrade from my old holder for precision engraving work.

Eva ★★★★★

The 20CrMnTi alloy steel makes this holder feel incredibly solid, and it’s handled some tight tolerance runs with no hint of wobble. Perfect upgrade for my small end mill setups.

Joshua I. ★★★★★

Picked this up for my CNC engraving projects and the 20CrMnTi alloy steel feels incredibly sturdy. The ER-11 collet holds my 1/8" bits perfectly with zero runout.