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SOLID CARBIDE SPIRAL CUTTERS Z=3 FOR LOCKS
T177-T178
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Without chip-breaker.
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For locks and slot mortising.
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T177.160.R right rotation and right hand twist (positive/up cut style).
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T177.160.L left rotation and left hand twist (positive/up cut style).
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T178.160.R right rotation and left hand twist (negative/down cut style).
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