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gmt@glacern.com

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Glacern ER Collet Chucks

Product Overview
The high accuracy and wide gripping range of ER collet chucks make them the most versatile and the most popular toolholders in the industry. ER "spring" collets with 8 degree tapers are capable of compressing 0.040", more than any other collet.

Features
  • Choice of Electroless Nickel Plating or Black Oxide Finish
  • Precision ground collet nut threads
  • Concentricity < 0.0001" at the collet taper
  • Tapers and flange hardened to 55 HRC
  • All CAT40 chucks balanced to G2.5 @ 20,000RPM
  • ER Collet Chucks are Thru Coolant Ready

Standard Nuts
  • CAT40-ER16-250
  • All ER25 and ER32 Chucks
  • Thicker wall, higher torque capacity
  • Use Standard (STD) wrenches

Slim (Castle) Nuts
  • CAT40-ER16-250S
  • CAT40-ER16-400S
  • R8-ER16S
  • Added clearance / 0.5" diameter
  • Use ER16-SLIM wrenches

Package Deals
  • Significant savings!
  • Pull studs & wrench included
  • ER collet chucks now available in 6-packs or 12-packs
  • Email us at gmt@glacern.com for a custom package!
  • Choose your custom collet set by emailing us or add the info to your order notes!

SALE CAT40 Double Contact Taper - Balanced to 30k RPM - Electroless Nickel
CAT40D-ER16-175 ER16 Dual Contact (G2.5 @ 30K) PHOTO $99.00 IN STOCK
 
CAT40D-ER25-175 ER25 Dual Contact (G2.5 @ 30K) PHOTO $99.00 IN STOCK
 
CAT40D-ER32-175 ER32 Dual Contact (G2.5 @ 30K) PHOTO $99.00 IN STOCK
 

SALE CAT50 Double Contact Taper - Balanced to 30k RPM - Electroless Nickel
CAT50D-ER16-250 ER16 DC Chuck 2.5in (G2.5@30K) PHOTO $99.99 IN STOCK
 
CAT50D-ER16-400 ER16 DC Chuck 4.0in (G2.5@30K) $99.99 IN STOCK
 
CAT50D-ER25-250 ER25 DC Chuck 2.5in (G2.5@30K) PHOTO $99.99 IN STOCK
 
CAT50D-ER32-250 ER32 DC Chuck 2.5in (G2.5@30K) PHOTO $99.99 IN STOCK
 
CAT50D-ER32-400 ER32 DC Chuck 4.0in (G2.5@30K) $99.99 IN STOCK
 

Package Deals - 6-Pack of ER Collet Chucks - Electroless Nickel
CAT40-ER16-250-6PS1 6-Pack ER16 Chucks, Fadal Studs PHOTO $699.99 IN STOCK
 
CAT40-ER16-250-6PS2 6-Pack ER16 Chucks, Haas Studs PHOTO $699.99 IN STOCK
 
CAT40-ER25-250-6PS1 6-Pack ER25 Chucks, Fadal Studs PHOTO $699.99 IN STOCK
 
CAT40-ER25-250-6PS2 6-Pack ER25 Chucks, Haas Studs PHOTO $699.99 IN STOCK
 
CAT40-ER32-250-6PS1 6-Pack ER32 Chucks, Fadal Studs PHOTO $699.99 IN STOCK
 
CAT40-ER32-250-6PS2 6-Pack ER32 Chucks, Haas Studs PHOTO $699.99 IN STOCK
 
ER-Collet-6Pack Custom ER Collet Set - You Pick 6 $145.99 IN STOCK
 

Package Deals - 12 Pack of ER Collet Chucks - Electroless Nickel
CAT40-ER16-250-12PS1 12-Pack ER16 Chucks, Fadal Studs PHOTO $1349.99 IN STOCK
 
CAT40-ER16-250-12PS2 12-Pack ER16 Chucks, Haas Studs PHOTO $1349.99 IN STOCK
 
CAT40-ER25-250-12PS1 12-Pack ER25 Chucks, Fadal Studs PHOTO $1349.99 IN STOCK
 
CAT40-ER25-250-12PS2 12-Pack ER25 Chucks, Haas Studs PHOTO $1349.99 IN STOCK
 
CAT40-ER32-250-12PS1 12-Pack ER32 Chucks, Fadal Studs PHOTO $1349.99 IN STOCK
 
CAT40-ER32-250-12PS2 12-Pack ER32 Chucks, Haas Studs PHOTO $1349.99 IN STOCK
 
ER-Collet-12Pack Custom ER Collet Set - You Pick 12 $280.00 IN STOCK
 

CAT40 Taper - Electroless Nickel
CAT40-ER16-250 ER16 Chuck 2.5in (G2.5 @ 20K) PHOTO $109.00 IN STOCK
 
CAT40-ER16-250S ER16 Chuck 2.5in - SLIM nut (G2.5) PHOTO $109.00 IN STOCK
 
CAT40-ER16-400 ER16 Chuck 4.0in (G2.5 @ 20K) PHOTO $119.00 IN STOCK
 
CAT40-ER16-400S ER16 Chuck 4.0in - SLIM nut (G2.5) PHOTO $119.00 IN STOCK
 
CAT40-ER16-600 ER16 Chuck 6.0in (G2.5 @ 20K) PHOTO $129.00 IN STOCK
 
CAT40-ER16-600S ER16 Chuck 6.0in - SLIM nut (G2.5) $129.00 IN STOCK
 
CAT40-ER20-250 ER20 Chuck 2.5in (G2.5 @ 20K) PHOTO $109.00 IN STOCK
 
CAT40-ER20-400 ER20 Chuck 4.0in (G2.5 @ 20K) PHOTO $119.00 IN STOCK
 
CAT40-ER20-600 ER20 Chuck 6.0in (G2.5 @ 20K) PHOTO $129.00 IN STOCK
 
CAT40-ER25-250 ER25 Chuck 2.5in (G2.5 @ 20K) PHOTO $109.00 IN STOCK
 
CAT40-ER25-400 ER25 Chuck 4.0in (G2.5 @ 20K) PHOTO $119.00 IN STOCK
 
CAT40-ER25-600 ER25 Chuck 6.0in (G2.5 @ 20K) PHOTO $129.00 IN STOCK
 
CAT40-ER32-250 ER32 Chuck 2.5in (G2.5 @ 20K) PHOTO $109.00 IN STOCK
 
CAT40-ER32-400 ER32 Chuck 4.0in (G2.5 @ 20K) PHOTO $119.00 IN STOCK
 
CAT40-ER32-600 ER32 Chuck 6.0in (G2.5 @ 20K) PHOTO $129.00 IN STOCK
 
CAT40-ER40-300 ER40 Chuck 3.0in (G2.5 @ 20K) PHOTO $109.00 IN STOCK
 
CAT40-ER40-400 ER40 Chuck 4.0in (G2.5 @ 20K) PHOTO $119.00 IN STOCK
 

R8 Taper - Electroless Nickel
R8-ER16 ER16 Collet Chuck - STD hex nut PHOTO $109.00 IN STOCK
 
R8-ER16S ER16 Collet Chuck - SLIM NUT PHOTO $109.00 IN STOCK
 
R8-ER20 ER20 Collet Chuck $109.00 IN STOCK
 
R8-ER25 ER25 Collet Chuck PHOTO $119.00 IN STOCK
 
R8-ER32 ER32 Collet Chuck PHOTO $119.00 IN STOCK
 
R8-ER40 ER40 Collet Chuck $119.00 IN STOCK
 

BT40 Taper - Black Oxide
BT40-ER16-275B ER16 Chuck 2.75in, Black Oxide PHOTO $109.00 IN STOCK
 
BT40-ER25-275B ER25 Chuck 2.75in, Black Oxide PHOTO $109.00 IN STOCK
 
BT40-ER25-400B ER25 Chuck 4.0in, Black Oxide PHOTO $119.00 IN STOCK
 
BT40-ER32-238B ER32 Chuck 2.38in, Black Oxide PHOTO $109.00 IN STOCK
 
BT40-ER32-400B ER32 Chuck 4.0in, Black Oxide PHOTO $119.00 IN STOCK
 

NT40 Taper - Black Oxide
NT40-ER32-200 ER32 Collet Chuck, Black Oxide PHOTO $139.99 IN STOCK
 
NT40-ER40-300 ER32 Collet Chuck, Black Oxide $139.99 IN STOCK
 

Straight Shank
S75-ER16 ER16 Chuck, 0.75 Straight Shank PHOTO $139.99 IN STOCK
 
S100-ER32 ER32 Chuck, 1.00 Straight Shank PHOTO $149.99 IN STOCK
 

Collet Nut Wrenches + Replacement Collet Nuts
ER16-SLIM SLIM ER16 Collet Wrench PHOTO $19.99 IN STOCK
 
ER16-STD Standard ER16 Collet Wrench PHOTO $19.99 IN STOCK
 
ER20-STD Standard ER20 Collet Wrench PHOTO $19.99 IN STOCK
 
ER25-STD Standard ER25 Collet Wrench PHOTO $19.99 IN STOCK
 
ER32-STD Standard ER32 Collet Wrench PHOTO $19.99 IN STOCK
 
ER32-BEAR Bearing ER32 Collet Wrench PHOTO $29.99 IN STOCK
 
ER40-STD Standard ER40 Collet Wrench PHOTO $19.99 IN STOCK
 
ER16-NUT Replacement ER16 Collet Nut PHOTO $29.99 IN STOCK
 
ER16S-NUT Replacement ER16 Slim Collet Nut PHOTO $29.99 IN STOCK
 
ER25-NUT Replacement ER25 Collet Nut PHOTO $29.99 IN STOCK
 
ER32-NUT Replacement ER32 Collet Nut PHOTO $29.99 IN STOCK
 
ER32-BNUT ER32 Bearing Collet Nut PHOTO $39.00 IN STOCK
 

Pull Stud Information
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