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Tip for joints with wood of good workmanship but presents problems with hard essences (beech etc.) that force to force a bit too much to advance For a use for amateur use is fine (cautious in the advancement) with mediocre results in precision but "passable" Maybe with larger diameters (I my 10 mm) you have a better precision
good the replacement drill bit i needed thank's
all good
Of average quality but considering the price...