Parabolic Flute Pen Makers Drill Bit Size:Letter "O" maybe for touch-ups or detail

maybe for touch-ups or detail work

machined square and flat

Closed: 3-3/4"

Length (from left to right): 5-9/16" (141 mm)

Parabolic Flute Pen Makers Drill Bit Size:Letter "O" maybe for touch-ups or detailThe flutes of a Fisch Pen Makers Bit are noticeably different from conventional style drill bits. The deep fluted shape of the Fisch Pen Makers Bit allows for rapid removal of chips with less clogging and provides a dramatic reduction in friction and heat buildup created while boring. The cutting edge geometry of this bit guides it straight through tough end grain and guarantees a clean entrance and exit hole. The bit is made from high quality M2 high