A professional who sets up and operates drill-sharpening machine (sharpener) to sharpen drill bits used in numerically controlled drill for fabricating printed circuit boards (PCB's). Respnsibilities include:

• Reads work order to determine number and size of drill bits to be sharpened.
• Inserts drill bits into cleaning machine, point-side down, that automatically starts brushes rotating to clean and remove debris from dull bits.
• Removes drill bit from cleaning machine and measures bit to verify specified size, using micrometer.
• Selects corresponding size bushing (brass sleeve) and mounts bushing into chuck of sharpener, using handtools.
• Inserts drill bit in chuck of sharpener and activates table that moves chuck and bit assembly through rotating abrading wheels to sharpen both sides of drill bit.
• Flips switch to release chuck and drill bit and removes bit.
• Observes sharpened bits under optical microscope to detect defects, such as chips or breaks.
• Discards defective drill bits.
• Places sharpened drill bits in box, point-end up.
• May clean sharpener.