MWS

SB/MB/LB/XB Type Drill Operational Guidance

MWS
  • 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

1. Drilling a pilot hole

2. Initial cutting with the long type drill

1. Drilling a pilot hole 2. Initial cutting with the long type drill

3. Drill the deep hole

4. Drill retraction

3. Drill the deep hole 4. Drill retraction

Interruped Drilling

  • Drilling and breaking through on irregular faces or angles

1. Spot facing

2. Drilling a pilot hole

1. Spot facing 2. Drilling a pilot hole

3. Initial cutting with the long type drill

4. Drill the deep hole

3. Initial cutting with the long type drill 4. Drill the deep hole

5. Breaking through

6. Drill retraction

5. Breaking through 6. Drill retraction

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

Flat Face Drilling

  • Drilling a blind hole

1. Drilling a pilot hole

2. Initial cutting with the long type drill

1. Drilling a pilot hole 2. Initial cutting with the long type drill

3. Drill the deep hole

4. Drill retraction

3. Drill the deep hole 4. Drill retraction

Interruped Drilling

  • Drilling and breaking through on irregular faces or angles

1. Spot facing

2. Drilling a pilot hole

1. Spot facing 2. Drilling a pilot hole

3. Initial cutting with the long type drill

4. Drill the deep hole

3. Initial cutting with the long type drill 4. Drill the deep hole

5. Breaking through

6. Drill retraction

5. Breaking through 6. Drill retraction
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