BB Flat Drill 180° CNC Inclined Curved Surface Bottom Hole Making Counterboring Tool Tungsten Carbide Steel External cooling stainless steel Large Chip Flute Fully Ground

Large Chip Flute Fully Ground Helix Angle

first use a spot drill to drill hole with a depth of 1 to 2 times the diameter to ensure the accuracy of the drilling process of ordinary drill bits

minimizes wear

*When abnormal noise occurs to the workpiece and equipment

BB Flat Drill 180° CNC Inclined Curved Surface Bottom Hole Making Counterboring Tool Tungsten Carbide Steel External cooling stainless steel Large Chip Flute Fully GroundBB Flat Drill1pcs Flat Bottom of the Hole, Burrless Wave Crescent Flat Bottom Drill Conventional Drill Bit Exit Side Burrs 180 Degree Flat Head Edge The angle of the tip is 180 , which is mainly used for processing inclined surface and curved surface surface holes. It can also reduce the burr of the through hole Comparison with milling cutter and drill bit 2 Flutes milling cutter, mainly used for horizontal milling. The drilling depth is not deep.