43/64" X 10" OAL with a 3MT Oil Hole Drill w/ Taper Shank Oil Hole Taper Shank Drills-Coolant Drills
43/64" X 10 Taper Shank Oil Hole Drills. - .6875 Decimal Equivalent, 5-3/8 Flute Length. Taper Shank Oil Hole Drills are twist drills containing a hole that delivers coolant to the edges of the drill bit. Coolant greatly reduces chip packing by flushing chips out of the hole and lowering the heat. Bisco Tool Supply sells Taper Shank Oil Hole Drills perfect for deep hole drilling.
||43/64" X 10" OAL with a 3MT Oil Hole Drill w/ Taper Shank