HiPer drill base body 8xD 28 mm GARANT

Article no.: 231615 28
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  • Version: 8×D
  • Shank: ISO 9766
  • Use for drilling: limited cross-drilling; limited drilling through a stack; limited drilling with oblique exit; limited oblique spot drilling
  • Number of cutting edges Z: 2
  • Through-coolant: yes

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Product details

Technical Data

Series HiPer-Drill
Version 8×D
Shank ISO 9766
Use for drilling limited cross-drilling; limited drilling through a stack; limited drilling with oblique exit; limited oblique spot drilling
Number of cutting edges Z 2
Through-coolant yes
Dia. range Dc 28 mm - 28,99 mm
Reach L1 232 mm
Shank ⌀ Ds 32 mm
Shank length Ls 60 mm
Clamping screw 231999 15IP1 (5.7 Nm)
Overall length L 333 mm
Type of product Indexable drill

Identification numbers & Classifications

Article number 231615 28
EAN / GTIN 4045197603333
Manufacturer number 231615 28

Description

Version:

  • 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.

Application:

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

Recommendation:

Drill the pilot hole.

Note:

Further sizes up to ⌀ 50.99 mm available on request.
The insert screw must be replaced after every fifth change of cutter insert.
reduce vf values by 20 %.
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.
For process reliability when using the drill, initial pilot drilling to 1.5×D with the drill No. 231600 with the same cutter insert size and type is necessary. The generation of a pilot hole improves process reliability.

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