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Cat. No.:
Tap extension with quick-release chuck, Type: 12
Article no.: 673643
Catalog no.: 338460
Article code:
Product details
Technical Data
| Entry of cooling lubricant | without cooling lubricant entry | |
| Escape of cooling lubricant | without cooling lubricant exit | |
| Cooling lubricant | no | |
| Manufacturer’s designation | Gewindebohrer-Verlängerung mit Schnellspannvorrichtung Typ 12 | |
| Holder type | square mounting | |
| Holder shape | plain shank | |
| Holder version | dimensionless nominal size without cooling | |
| Holder size, no dimensions | 12 | |
| Type of mounting | spigot | |
| Shank length LS | 53 mm | |
| Min. clamping diameter D1 | 16 mm | |
| Max. clamping diameter D1 | 16 mm | |
| Gauge length A | 149 mm | |
| External diameter, tool-end D | 26 mm | |
| Interface | joint 1; joint 2 | |
| Type of product | toolholder extension | |
| Overall length L | 149 mm | |
| Overall height H1 | 26 mm | |
| Overall width B1 | 26 mm | |
| Standard | DIN 69882-7 | |
| Through-coolant available | no | |
| Material | steel | |
| Weight | 0.38 kg | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 673643 | |
| Catalog number | 338460 | |
| EAN / GTIN | 4045197953193 | |
| Manufacturer number | 338460 12 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- Long version.
- Torque transmission via the square shank.
- The leading end of the extension is fitted with a quick-release chuck.
- The rear end of the extension is to DIN, so that the extension can be mounted either in a quick-change tapping head or in an ER collet for taps with a square shank.
Advantage:
- Time-saving exchange of taps with repetition accuracy and quick-change adapter.
- Almost any combination of extensions available, due to the identical diameter D3 and drive square K2.
Application:
For tapping in confined places, such as recesses, offsets, sharp edges on jigs, extremely deep internal threads, or directly into casting walls.
Suitable for:
For mounting in quick-change tapping collets or ER tapping collets with a square drive.