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Item no.: 231620

HiPer-Drill base body 12×D

Drill depth up to 12×D
Skaft ISO 9766
Through-coolant true
Use for drilling limited drilling through a stack
Use for drilling limited drilling with oblique exit
Use for drilling limited cross-drilling
Use for drilling limited oblique spot drilling
No price available

HiPer-Drill base body 12×D

In stock
More from the category Indexable drills
More about GARANT



  • Very high feed rates and maximum performance due to optimally matched geometries and materials.
  • Precise positioning of the cutter insert due to Vee insert seating and secure clamping by the centre bore.
  • High concentricity when assembled.
  • Shank support for optimum stability in operation.

Polished flutes.


For stationary and rotating use. For holes up to IT9 accuracy.


Further sizes up to ⌀ 50.99 mm available on request.
Reduce feed rates f by 10% and vc values by 40%.
For process reliability when using the drill, initial pilot drilling to 1.5xD with the drill No. 231600 with the same cutter insert size is necessary. The generation of a pilot hole improves process reliability.
Clamp in a hydraulic chuck (such as No. 302026 size 20) for optimum radial run-out.
For optimum stability, clamp the drill so the overhang is as short as possible.

Technical Data

Drill depth up to
Use for drilling
limited cross-drilling ; limited drilling through a stack ; limited drilling with oblique exit ; limited oblique spot drilling 
ISO 9766