FIELD: mechanical working, drilling precise openings in laminate glued structures.
SUBSTANCE: drill includes body made as hollow body of revolution having on its end cutting teeth. In order to enhance quality and accuracy of drilling, cutting teeth are made as one piece with body and they have width no more than 2.5 mm and height no more than 5 mm. Cutting edge angle for all teeth is the same and it is in range φ= 100 - 150°.
EFFECT: improved quality and accuracy of drilling.
2 dwg, 2 tbl
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