This page has been edited 3 times. The last was made by - gheuer gheuer on May 20, 2015 8:36 am GMT

6.9 Pneumatic Hand Drill

Considerations

  • Pre-Operation Checklist is a prerequisite for ANY operation.
  • Operator cleans tool and work area after use.
  • Required OSHA approved personal protective equipment is worn.
  • Lock-out/Tag-out procedure is in place and followed.
  • Process is completed in a timely manner.

Pre-Operation Checklist

Level 1

Performance Standard -
  • Demonstrates knowledge of and proper use of all machine specific controls.
  • Verifies stock is properly clamped and/or supported.
  • Demonstrates proper holding of tool to prevent accidental injury.
  • Verifies area beyond stock is clear, not subject to damage by drill-through;
  • Verifies air hose is clear of tool path.
  • Verifies air hose has sufficient slack to permit tool movement required by task.

Level 2

Performance Standard -
  • Adjusts tool depth setting if equipped/required.
  • Maintains/replaces drill bit as required.
  • Lubricates tool as required
  • Meets Level 1 performance standard.

6.9.1 - Drill Holes to Specified Location and Depth

Level 1

Given stock marked for single hole to be drilled, drill hole in proper position to specified depth.
Performance Standard -
  • Hole is drilled in proper position ±0.4 mm (1/64") [0.0156"].
  • Hole is drilled to proper depth ±0.4 mm (1/64”) [0.0156”].
  • Hole is free of tear-out at entry point.
  • Uses steady even pressure during operation.
  • Sides of holes are smooth and free of burn marks.

Level 2

Given stock, layout hole(s) as specified, set up drill motor and bit, and drill hole(s) in proper position to specified depth.
Performance Standard -
  • Selects and installs proper tooling.
  • Selects and sets proper speed for bit and material.
  • Adjusts depth stop properly and securely.
  • Meets Level 1 performance standard.

6.9.2 - Drill Holes Completely Through Material

Level 1

Given stock marked for single hole to be drilled, drill hole in proper position.
Performance Standard -
  • Hole is drilled in proper position ±0.4 mm (1/64") [0.0156"]
  • Hole is free of tear-out at entry and exit points
  • Sides of holes are smooth and free of burn marks

Level 2

Given stock, layout hole(s) as specified, set up drill motor and bit, and drill hole(s) in proper position.
Performance Standard -
  • Selects and installs proper tooling.
  • Selects and sets proper speed for bit and material.
  • Installs chip breaker backer board or block (when appropriate)
  • Meets Level 1 performance standard.