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Duo-Lock™ Monoblock holder JIS B 6339 · BT40

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
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Duo-Lock™ Monoblock holder JIS B 6339 · BT40

Duo-Lock™ Monoblock holder JIS B 6339 · BT40

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 JIS B 6339 · BT40

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

With steep taper JIS B 6339 BT40 Form ADB.
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

Duo-Lock™ Monoblock holder JIS B 6339 · BT40  - Technical drawing

Technical data:

Interface DL10
Clamping Ø D1 [mm]10
Ø D2 [mm]9.6
L1 [mm]22
L2 [mm]5
Order No. Gage length A in mm    
40.690.DL10 BT40 Duo-Lock™ Monoblock Holder short Pictogram
Short, 49.00 mm
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Interface DL12
Clamping Ø D1 [mm]12
Ø D2 [mm]11.5
L1 [mm]22
L2 [mm]6
Order No. Gage length A in mm    
40.690.DL12 BT40 Duo-Lock™ Monoblock Holder short Pictogram
Short, 49.00 mm
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Interface DL16
Clamping Ø D1 [mm]16
Ø D2 [mm15.5
L1 [mm]31
L2 [mm]8
Order No. Gage length A in mm    
40.690.DL16 BT40 Duo-Lock™ Monoblock Holder short Pictogram
Short, 58.00 mm
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Interface DL20
Clamping Ø D1 [mm]20
Ø D2 [mm]19.3
L1 [mm]31
L2 [mm]10
Order No. Gage length A in mm    
40.690.DL20 BT40 Duo-Lock™ Monoblock Holder short Pictogram
Short, 58.00 mm
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Interface DL25
Clamping Ø D1 [mm]25
Ø D2 [mm]24
L1 [mm]33
L2 [mm]12.5
Order No. Gage length A in mm    
40.690.DL25 BT40 Duo-Lock™ Monoblock Holder short Pictogram
Short, 60.00 mm
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Interface DL32
Clamping Ø D1 [mm]32
Ø D2 [mm]31
L1 [mm]41
L2 [mm]16
Order No. Gage length A in mm    
40.690.DL32 BT40 Duo-Lock™ Monoblock Holder short Pictogram
Short, 68.00 mm
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