Albrecht ER Micro-Chucks

  • These unique one-piece toolholders provide extra reach and support for your drills and endmills when using driven tooling.
  • Exceptional accuracy and rigidity for:
    • More aggressive chip removal
    • Faster cycle times
    • Improved cutting tool life
  • Integral ER body, super slim nose, and ultra-precision collets work in unison for optimized clearance and superior vibration dampening over shrink-fit holders.
  • Cutting tool life significantly extended.
  • Available in three popular ER configurations for compatibility with many brands of driven tools.
  • Ultra-precision accuracy – 3 microns (0.00012″) at 2.5 x diameter.
  • High-speed balanced to G2.5@40,000 rpm.
  • Collets are available from stock in both inch and metric sizes with a choice of precise coolant delivery options:
    • Standard – coolant is directed through the collet slots over the cutting tool
    • Sealed – coolant is directed through the center of the cutting tool (for cutting tools that have central coolant ports)
  • Simple axial tightening reduces setup time.

The Old Method

  • Small diameter cutting tools flex under load
  • Excessive vibration
  • Less than optimal cycle times

The Albrecht Method

  • Cutting tools supported over greater length
  • Superior rigidity, accuracy, and dampening
  • Faster cycle times
Simple, axial tightening of the collet keeps the tool on centerline and enables fast changeover.
Benefit from additional cutting tool support while maintaining excellent clearance in tight areas.
Integral ER body optimizes rigidity and vibration dampening.

ALBRECHT ER MICRO-CHUCKS

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Body
Style
A
L1
D1
PART NUMBER
PRICE
46022
$4,270
ER-20
1.10
1.10
0.53
74660
$450
ER-20
1.38
1.38
0.53
74662
$475
ER-25
0.98
0.47
0.53
74664
$460
ER-25
1.57
0.59
0.53
74666
$480
ER-25
1.97
0.79
0.53
74668
$490
ER-32
0.98
0.47
0.53
74670
$475
ER-32
1.57
0.59
0.53
74672
$490
ER-32
1.97
0.79
0.53
74674
$500

Albrecht ER Micro-Chuck Ultra-Precision Collets

Inch Sizes

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Diameter
Collet
Type
PART NUMBER
PRICE
1⁄8″
Standard
74610
$146
3⁄16″
Standard
74611
$146
1⁄4″
Standard
74612
$146
1⁄8″
Sealed
74620
$175
3⁄16″
Sealed
74621
$175
1⁄4″
Sealed
74622
$175

Metric Sizes

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Diameter
Collet
Type
PART NUMBER
PRICE
1mm
Standard
74613
$271
2mm
Standard
74614
$163
3mm
Standard
74615
$141
4mm
Standard
74616
$141
5mm
Standard
74617
$141
6mm
Standard
74618
$141
1mm
Sealed
74623
$310
2mm
Sealed
74624
$202
3mm
Sealed
74625
$169
4mm
Sealed
74626
$169
5mm
Sealed
74627
$169
6mm
Sealed
74628
$169