Drill Press

Study Guide

Prepare to use the drill press safely and responsibly from setup through cleanup.

1. Drill press safety mindset

  • Use the drill press only after Engineering Safety and Drill Press certification requirements are complete.
  • The drill press is a rotating machine; entanglement, flying chips, and spinning workpieces are the major hazards.
  • Never rush, horseplay, distract another student, or reach near a spinning bit.
  • Stop and ask for help if the bit slips, chatters, binds, smokes, breaks, or the workpiece shifts.
  • Do not operate the machine if you are unsure about the material, bit, speed, clamp, or setup.

2. PPE and clothing

  • Safety glasses are required whenever drilling or standing near active drilling.
  • Tie back long hair and secure hoodie strings, lanyards, jewelry, and loose clothing.
  • Closed-toe shoes are required in fabrication areas.
  • Do not wear gloves while operating a drill press because they can catch in rotating parts.
  • Keep hands clear of the bit, chuck, spindle, and spinning chips.

3. Bit selection and setup

  • Use the correct drill bit for the material and hole size.
  • Inspect the bit for dullness, damage, bending, or incorrect type before use.
  • Seat the bit straight in the chuck and tighten it evenly.
  • The chuck key must be removed immediately after tightening and before turning on the drill press.
  • Never leave the chuck key in the chuck.

4. Workholding and table setup

  • Clamp the workpiece or secure it with an approved vise or fixture.
  • Never hold small parts by hand while drilling.
  • Support the material so it stays flat and cannot spin if the bit catches.
  • Use scrap backing material when needed to reduce tear-out and protect the table.
  • Adjust table height and alignment before the machine is running.

5. Speed and drilling technique

  • Use teacher-approved speed settings for the material and bit size.
  • Larger bits and harder materials often require slower speeds.
  • Start the drill press before contacting the material, then lower the bit with controlled pressure.
  • Do not force the bit; forcing can break bits, burn material, or cause binding.
  • Use peck drilling when needed: drill a little, back out, clear chips, and continue.

6. Chip clearing and adjustments

  • Clear chips with a brush or approved tool, not with fingers or while the spindle is moving.
  • Wait for the bit to stop completely before measuring, adjusting, or removing the part.
  • Do not reach around the spinning bit to move material or scraps.
  • If the bit binds or the part shifts, stop the machine and ask for help.
  • Keep the table and floor area clear of loose scraps and trip hazards.

7. Common warning signs

  • Chattering or vibration may indicate poor clamping, dull bit, wrong speed, or too much pressure.
  • Smoke or burning smell may indicate wrong speed, dull bit, or forcing the cut.
  • A spinning workpiece means the material was not secured correctly.
  • A stuck or broken bit requires the machine to be stopped and teacher assistance.
  • Unusual sounds should be treated as a stop-and-check signal.

8. Shutdown and cleanup

  • Turn the machine off and wait for full stop before leaving the station.
  • Remove the workpiece, clamps, scrap backing, and chips safely.
  • Return drill bits, clamps, and tools to the correct storage location.
  • Report damaged bits, missing chuck keys, table damage, or unsafe conditions.
  • Leave the station ready for the next student.

Hands-on performance checklist

To earn the badge, students must demonstrate safe setup, bit/chuck-key procedure, correct workholding, controlled drilling, and cleanup under teacher observation.