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Manufacturer number:
Cat. No.:
HiPer Drill base body, 12×D, ⌀ DC: 15mm
Article no.: 570791
Catalog no.: 231620
Article code:
Product details
Technical Data
| Through-coolant | yes | |
| Interface position | on the machine | |
| Holder type, joint 1 | plain shank | |
| Dry machining | unsuitable | |
| Holder tolerance class | h6 | |
| Shank diameter DS | 20 mm | |
| Length of shank LS | 50 mm | |
| Holder diameter, upper dimension | 0 mm | |
| Holder diameter, lower dimension | -0.013 mm | |
| Oil | unsuitable | |
| Air | unsuitable | |
| Cooling lubricant | yes | |
| Series | HiPer-Drill | |
| Manufacturer’s designation | HiPer Drill Grundelement | |
| Cutter diameter, min. Dc | 15 mm | |
| Cutter diameter, max. Dc | 15.99 mm | |
| Number of cutting edges, total | 2 | |
| Interface | joint 1 | |
| Type of fastening for insert | P (with cyl. hole clamped via hole) | |
| Gauge length A | 217 mm | |
| Usable length L1 | 192 mm | |
| Overall length L | 267 mm | |
| Functional length | 217 mm | |
| Cutting direction | right-hand cutting | |
| Machining method | drilling into solid material (BVB) | |
| Type of product | indexable drill for cutter inserts | |
| Drill depth for indexable insert drill up to | 12×D | |
| Use for drilling | limited cross-drilling; limited drilling through a stack; limited drilling with oblique exit; limited oblique spot drilling | |
| Content | single part |
Identification & Classification
| Article number | 570791 | |
| Catalog number | 231620 | |
| EAN / GTIN | 4045197687678 | |
| Manufacturer number | 231620 15 | |
| Article class | 21S | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
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.
Polished flutes.
Application:
For stationary and rotating use. For holes up to IT9 accuracy.
Note:
Further sizes up to ⌀ 50.99 mm available on request.
The insert screw must be replaced after every fifth change of cutter insert.
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.
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.
Reduce feed rates f by 10 % and vc values by 40 %.
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.
The insert screw must be replaced after every fifth change of cutter insert.
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.
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.
Reduce feed rates f by 10 % and vc values by 40 %.
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.
Warning:
Intended use
Reasonably foreseeable misuse
- For stationary and rotating applications.
- For medium-sized bores up to IT9 accuracy, right-hand cutting.
- Only use with cooling lubricant emulsion for through-coolant.
- Carry out pilot drilling before use to increase process reliability.
- Use only with cutter insert no. 231630 – 231690, clamping screw no. 231999.
- Tighten clamping screw with torque engraved on drill.
- For work in industrial environments.
- Use only when it is technically in good condition and safe to operate.
Reasonably foreseeable misuse
- The operating company must ensure that personnel who work on the product comply with the regulations and provisions together with the following instructions: National and regional regulations for safety, accident prevention and environmental protection regulations.
- No damaged products are assembled, installed or commissioned.
- The necessary protective equipment is provided.
- Use only when correctly assembled and with safety devices and guards on the machine fully operational.