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Step drill bit
01
broca escalonada, broca de degraus
a specialized drill bit with multiple stepped diameters, allowing for the gradual enlargement of holes and the creation of various hole sizes with a single bit
Exemplos
With a step drill bit, she was able to drill clean holes for the pipes without any jagged edges.
Com uma broca escalonada, ela conseguiu perfurar furos limpos para os tubos sem bordas irregulares.
