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ATORN chuck for solid drill bits BT40 (ISO 7388-2) dia. 20 mm A=72 mm

ATORN chuck for solid drill bits BT40 (ISO 7388-2) dia. 20 mm A=72 mm
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ATORN

Item no: 1021653 147

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Description
Application
This chuck is used to clamp indexable insert solid drill bits that are fixed with two screws, similar to a surface chuck.

Execution
  • Alloyed case-hardening steel, core tensile strength at least 950 N/mm².
  • Case-hardened HRc 60 ± 2 (HV 700 ± 50), hardness depth 0.8 mm ± 0.2 mm, black oxide finish.
  • Taper angle tolerance quality < AT3 in accordance with DIN 7187 and DIN 2080.
  • Max. concentricity < 0.005 mm.

Delivery
1x solid drill chuck BT40 (ISO 7388-2).

Notes
The previous standard JIS B 6339 MAS BT was superseded by ISO 7388-2.

Technical data

Brand: ATORN
Tool holding device: BT 40
Form: JD
Clamping diameter: 20 mm
Outer diameter: 40 mm
Projecting length: 72 mm
Clearance length to collar: 46 mm
Coolant supply: Internal axial
Clamp in depth: 56 mm
Balancing quality: G 2.5 at 25,000 rpm

More details

ATORN-No.: 22661020
EAN no.: 4050293714357

Product Datasheet

Versions
Herstellerinformationen
Keywords: ,NEU2021SPT,

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