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Item number: 1639.503

General information:

Each extension is provided with three clamping surfaces on the shaft and has a mounting hole with four clamping screws at the front end. These clamping screws are arranged in pairs offset by 120 °. For example with Bormax-Forstnerbohrer you clamp on two of the three clamping surfaces. The extensions are otherwise available with different mounting holes with a diameter of 8, 10, 12 and 13 mm, depending on the shaft diameter of the different drills. They are also available in four different overall lengths of 80 mm, 125 mm, 250 mm and 400 mm. Please inquire if required!

FAMAG 1639.503
Drill extension set
in a wooden box, 
80 - 125 - 250 mm,
Mounting Ø 10 mm, 3-part

Manufacturer number: FAMAG 1639.503

Drill extension with machine holder Ø 10 mm.
With 4 clamping screws for secure tool mounting. Solid design with good concentricity.
3 clamping surfaces on the shaft.
Ideal for deep hole drilling, also when turning.

Characteristics:

Quality level: Classic

Execution: Machine holder Ø 10. With 4 clamping screws for secure tool mounting. Solid execution.

Tool material: WS

Recommended speed: in the case of long extensions, let the drill turn more slowly than indicated in the diagrams

Use: For extending cylinder head drills or Allen drilling tools

Tips

• Ideal for deep hole drilling, also when turning.
• Conditionally suitable for applications in head wood (especially hard wood), as there are high demands on machine chucks.
• Thanks to the four clamping screws and the three surfaces on the shaft, it is also possible to combine several extensions with one another. This makes it possible to achieve even greater usable lengths. The tolerances of the mounting holes and the shafts are designed in such a way that precise concentricity is guaranteed even when several extensions are used.