Challenge paper drill bits

The Challenge paperdrilling machine comes originally from the USA and uses special drill bits with a conical head. The head startswith a diameter of 17,8 mm that goes up to 18,6 mm. The total length of the drill including the head is around 8 cm.
Below you can find the available perforating diameters.

Challenge paperdrill, perforating diameter 3,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 3,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 4,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 4,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 5,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 5,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 5,5 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 5,5 mm. Sold by piece.

Challenge paperdrill, perforating diameter 6,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 6,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 7,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 7,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 8,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 8,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 9,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 9,0 mm. Sold by piece.

Challenge paperdrill, perforating diameter 10,0 mm. Sold by piece.

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Challenge paperdrill, perforating diameter 10,0 mm. Sold by piece.
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