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CN104227087A
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Depth limiting drill bit
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CN104227086A
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Drill bit with adjustable drilling depth
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CN104227085A
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Drill bit with replaceable cutting edges
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CN104128641A
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Drill bit
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CN104128642A
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Inner-cooling step drill with good cooling effect
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CN104107936A
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Stepped drill capable of adjusting depth of stepped hole
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CN104110217A
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Guiding drill bit
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CN104107932A
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Drill bit with chip removal machine
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CN104110216A
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Core bit
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CN104107964A
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Screw tap with automatic chip removal function
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CN104107939A
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Internally-cooled drill
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CN104107935A
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Stepped drill
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CN104107962A
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Stepped screw tap
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CN104107963A
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Tap
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CN104107940A
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Inner-cooling stepped drill
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CN104107965A
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Drilling and milling screw tap
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CN104107934A
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Internally cooled drill with automatic chip removal function
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CN104107937A
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Stepped drill with replaceable drilling edges
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