Style B Paper Drill Bits

Choose the diameter according to the finished hole and the hardware or filing method that will pass through it. A smaller hole can suit narrow fasteners or jobs where minimal paper removal matters, while a larger hole gives more clearance for posts, rings, or repeated handling. The existing document specification is usually the safest reference when a job is being repeated. Measure a finished sample or confirm the fastener diameter rather than selecting a bit because it is the most common size in the shop. Also allow for coated covers or mixed stocks, which can make a tight hole harder to assemble. Keep the same diameter across all drilling positions in one job unless the document design specifically requires otherwise. A consistent specification helps prevent loose fastening, torn holes, and difficult assembly.

Style B Lawson standard bits are associated with a drilling capacity of up to 2 1/4 inches, but the usable stack should also reflect the paper type, cover stock, machine condition, and required hole quality. The stated capacity is not a reason to run every job at the maximum. Dense coated sheets, laminated covers, or mixed materials can create more heat and resistance than plain bond paper. Reduce the stack if chips are not clearing cleanly or the machine begins to labor. The specifications of the paper drills being used should govern the final stack height because the bit and machine work as one system. A smaller, controlled stack often produces cleaner entry and exit holes than an overloaded setup.

Sharpen or replace the bit when holes become fuzzy, scorched, uneven, or harder to produce with normal machine pressure. Other warning signs include increased heat, frequent chip packing, paper lifting around the hole, or a noticeable drop in drilling speed. Do not keep pressing harder to compensate for a dull cutting edge because extra force can worsen hole quality and place unnecessary strain on the equipment. Hollow paper drill bits can often be sharpened with the correct tool and method, but sharpening must preserve the cutting geometry and outside diameter. A bit that is damaged, cracked, badly shortened, or no longer holds an edge should be replaced. Keeping a spare in the confirmed style and diameter prevents production from stopping while another bit is being serviced.

Clean results depend on more than the bit alone. A sound drill block supports the stack at the exit point, a chip clearer removes packed paper from the hollow centre, and suitable drill wax can reduce friction during demanding runs. The block should be rotated or replaced before deep grooves stop supporting the paper evenly. Chips should be cleared with the proper tool rather than with fingers or an improvised sharp object. The range of paper drill accessories includes blocks, lubricants, clearers, sharpening tools, and other maintenance items that support the drilling process. Keep the machine area free of loose paper dust and confirm that each accessory is suitable for the drill model and bit style before use.