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Certificate of Quality

  • Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
  • All functional surfaces fine machined
  • Taper tolerance AT3
  • Coolant supply form ADB
Your current product selection:

Duo-Lock™ Monoblock Holder DIN 69871 SK40

Certificate of Quality

  • Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
  • All functional surfaces fine machined
  • Taper tolerance AT3
  • Coolant supply form ADB

Duo-Lock™ Monoblock Holder DIN 69871 SK40

Duo-Lock™ Monoblock holder for direct clamping of the Duo-Lock™milling head. Perfectly suitable for milling with short overhang.

With steep taper SK40 Form ADB DIN 69871.
Form ADB means: central coolant supply and coolant channels on the collar which can be sealed again.

  • All holders incl. inner coolant
  • Hardened 54-2 HRC

Technical data subject to change without prior notice.

Technical drawing

Technical data:

Interface DL10
Clamping Ø D1 [mm]10
Ø D2 [mm]9.6
Length L1 [mm]21.9
L2 [mm]5
Order No. Gage length A in mm    
40.490.DL10
Short, 41.00 mm
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Interface DL12
Clamping Ø D1 [mm]12
Ø D2 [mm]11.5
Length L1 [mm]21.9
L2 [mm]6
Order No. Gage length A in mm    
40.490.DL12
Short, 41.00 mm
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Interface DL16
Clamping Ø D1 [mm]16
Ø D2 [mm]15.5
Length L1 [mm]30.9
L2 [mm]8
Order No. Gage length A in mm    
40.490.DL16
Short, 50.00 mm
DXF
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Interface DL20
Clamping Ø D1 [mm]20
Ø D2 [mm]19.3
Length L1 [mm]30.9
L2 [mm]10
Order No. Gage length A in mm    
40.490.DL20
Short, 50.00 mm
DXF
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Interface DL25
Clamping Ø D1 [mm]25
Ø D2 [mm]24
Length L1 [mm]36.9
L2 [mm]12.5
Order No. Gage length A in mm    
40.490.DL25
Short, 56.00 mm
DXF
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Interface DL32
Clamping Ø D1 [mm]32
Ø D2 [mm]31
Length L1 [mm]45.9
L2 [mm]16
Order No. Gage length A in mm    
40.490.DL32
Short, 56.00 mm
DXF
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