Style L Paper Drill Bits

Style L premium hollow bits cover diameters from 1/8 inch through 1/2 inch. Choose according to the hardware and finished document, not according to the largest size the drill accepts. Smaller openings preserve more paper around the edge and may suit narrow posts or tag work. Larger openings give more clearance for wider fasteners or repeated sheet movement. For a recurring job, use the recorded specification or measure an approved sample. For new work, drill scrap pieces containing the same paper, covers, tabs, and laminated sheets planned for production. Fit the hardware through the sample and confirm that it moves properly without leaving excessive play. Keep the chosen diameter consistent across all holes in the same fastening pattern.

The one-inch length is a key part of the Style L specification, but the drill model and material determine the practical stack height. A stack that approaches the limit may behave differently when it includes coated paper, plastic covers, tabs, or laminated sheets. The specifications for Spinnit paper drills should govern the final setup, including feed method and capacity. Use a smaller stack when the bit becomes hot, chips stop clearing, or the exit side begins to tear. Several controlled passes can be more reliable than forcing a dense mixed stack through at once. The aim is a clean, aligned hole through every sheet, not simply reaching the largest possible stack.

They may be used on materials supported by the machine and bit instructions, but coated and laminated stock needs more care than plain paper. These materials can increase friction, trap heat, and produce chips that clear differently. Use a sharp bit, suitable lubricant, and a smaller test stack containing the actual materials. Inspect both sides of the hole for melting, rough edges, lifting, or tearing. Reduce the stack if the machine requires more pressure than normal. The drill block must also provide firm support beneath the material. Do not assume that a clean result on bond paper guarantees the same result on plastic-coated covers. A brief trial helps establish the feed rate, stack height, and maintenance interval for the job.

A Style L setup benefits from spare bits, drill wax, a chip clearer, drill blocks, sharpening tools, and the correct removal tool. Some drill drifts are made specifically for Style A and Style L bits, so the machine instructions should be inspected before selecting one. The broader range of paper drill accessories includes tools that support bit removal, sharpening, lubrication, and stack support. Use each tool only for its intended purpose and switch off the equipment before maintenance. Store the bit in a protective tube after removal. Proper handling helps preserve the shank and cutting edge, which is important when several diameters are kept beside the same drill.