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DE4015749A1
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Undercutting tool for holes in concrete - involves cutting edge which is pressed against wall of blind bore
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DE4012772A1
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Hammer drill bit - has cruciform cutters with notches in two opposite ones
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DE4004814A1
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Drill for rock or concrete or earth - has drilling head consisting of individual points of hard metal soldered into head
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DE3823891A1
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Drilling device
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DE3623657C1
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Drilling tool for making undercuts in pilot drillholes
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DE3312019A1
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Grooving chisel for hammer drilling machines
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DE3227767A1
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Drilling tool for producing drilled holes with at least one widened portion at the bottom of the drilled hole
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DE3025890A1
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Rock or concrete working hammer drill bit - has cutting edges on radial ribs of one-piece tungsten carbide insert with centering point
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DE2940595A1
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Masonry drill bit - has tungsten carbide inserts brazed in slots open in radial and axial directions
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DE2811677A1
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DEVICE FOR ACCEPTING A ROCK DRILL IN THE DRILL CHUCK OF A ROTARY IMPACT DRILL
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