Spinnit Drill Bits

Coated paper, laminated sheets, synthetic stock, heavy covers, and adhesive-backed materials can create more heat or residue than plain office paper. The stack height and density also affect chip removal and the pressure required to drill cleanly. Confirm that the stock is suitable for the machine and bit, then use proper lubrication and maintenance. Do not exceed the stated drilling capacity simply because the stack fits beneath the spindle. Reduce the lift height when unfamiliar or difficult materials produce heat, rough holes, or packed chips. A sharp bit, clean cutting surface, and correct operating speed all contribute to better results across changing paper types.

Clogging may be caused by packed paper chips, inadequate lubrication, a dull cutting edge, excessive stack height, unsuitable stock, or delayed chip removal. Stop the machine and follow the approved procedure for clearing the bit. Do not insert fingers, improvised tools, or excessive force into the bit while it is mounted or hot. The use of paper-drill lubricant may help reduce residue and heat when applied correctly. Chip removal should be part of normal operation rather than delayed until the bit is fully blocked. Persistent clogging after cleaning and lubrication may indicate that the bit needs sharpening, replacement, or a lower drilling lift.

The number of sharpening cycles depends on the original bit construction, how much material is removed each time, and whether the bit has been damaged. Sharpen only enough to restore the cutting edge, following the method recommended for hollow paper-drill bits. Excessive or uneven sharpening can alter the geometry and reduce performance. Keep a record of maintenance for heavily used sizes so replacement can be planned. A bit should be retired when it becomes too short, cracked, bent, or unable to hold a proper edge. Regular light maintenance is generally more practical than continuing to use a severely dull bit and attempting an aggressive repair.

Replace the bit when it is cracked, bent, chipped, excessively shortened, or unable to produce clean holes after correct sharpening and lubrication. A damaged bit can break during operation, harm the stack, or place extra strain on the machine. If one size is used continuously, keeping a spare can prevent downtime while the working bit is being sharpened. Store the replacement safely and inspect the chuck, cutting stick, and chip-removal path before installing it, since problems elsewhere in the system can shorten the life of a new bit.