A quality precision bit is totally predictable, giving you consistent results time after time. Quality in function and durability are important.
Cheaper bits will not work as well because of the special geometry of the bit and high quality of carbide used. The special fishtail point does not "dance" on surfaces and, therefore, has the ability to accurately drill holes. Fishtail point will continue to drill after other types of drill points are dull. The special design allows the bit to cut using the side of the bit without chatter or chipping.
It has been our experience that the overwhelming number of complaints of poor results are caused by rushing the amount of time required to do the job. Be patient and carefully follow the instruction given with our products to achieve better results.
For our purposes, cutting bits and drill bits are one and the same. Cutting bits can not only drill straight in, but also provide a side cutting action.
The cutting bits 1/8" shank is standard in all motor tools and will fit hand drills. Even though breakage can occur due to the brittle nature of carbide, we have found that breakage can be minimized with proper technique.
- Always hold the Dremel (or other motor tool) firmly, close to the end as if holding a pencil.
- Steady the piece being drilled with one hand down on a table or work bench. The hand holding the Dremel should be positioned to rest against the piece being cut or rested on books or a box positioned on the table to give you stability and height over the piece.
- DO NOT hold your hand out in the air. The objective is to steady the Dremel and piece so that no vibration can occur.
- Lightly touch the bit to the bolt using an in and out motion. Then make small circles using the bit, continuing to bring the bit in and out of the work piece.
- Remember to bring the bit in and out of the piece to keep the hole clean of cutting residue and prevent the bit from binding and breaking.
- Use a bit smaller than the hole size you require. Drill open the hole, then enlarge the hole using the side of the bit to make the proper size hole.
- Micro Drill Bits are for use on greenware only. They will not open up a plugged glaze hole (Our cutting bit #4011, #4012, #4013 is designed for that purpose). Lightly touch the bit to the piece of greenware using and in and out "feather touch" motion. These bits are not recommended for use on fired porcelain, glazes or bisque.
- Even though the drill bit will work in hand drills, we do not recommend using hand drills because of their slower speeds which reduces the cutting action of the bits. Truebite® cutting bits were designed to be run at high speeds of 28,000 rpms. The standard pistol grip hand tool runs at only 1300 rpms. At slower speeds you are more apt to put pressure on the bit to make it work faster which can cause bit breakage.
- If after following the instructions, you have chatter and broken bits, your Dremel may have a bad collet or dust under the collet . Dust cause the bit to run uneven and results in chatter, chipping and possible breakage. If another motor tool is not available to test the bit, replace the collet in your Dremel.
