SB/MB/LB/XB Type Drill Operational Guidance

NOTES ON USE (For DC<3)

  • Please use a fine mesh filter (mesh≦ 3µm) for coolant to prevent jamming in the oil hole.
  • For deep drilling with the long type drill, machining a pilot hole is recommended.
    (Otherwise, centrifugal forces may cause drill breakage.)

DB Type Drill(L/D≧10,D1>3) Operational Guidance

Flat Face Drilling

  • Drilling a blind hole
Flat Face Drilling

Interruped Drilling

  • Drilling and breaking through on irregular faces or angles
Interruped Drilling

Operational Guidance for the Long Type Drill (L/D≧3)

Flat Face Drilling

  • Drilling a blind hole
Flat Face Drilling

Interruped Drilling

  • Drilling and breaking through on irregular faces or angles
Interruped Drilling