FAMAG HSS-G wood spiral drill bit 7x108mm
For the best drilling, the precision drill bits from Famag are the way to go. For many luthiers Famag is the brand and stands for German quality and durability.
The drills have a smaller centering point than most wood drills, which is very nice since you have less loss on centering depth and it leaves a flatter surface.
In addition, the drills have two side cutters on the head that cut the grain clean. The top cutters effortlessly crush the hardest woods.
The drills are equipped with 2 spirals in different widths, which ensures optimum chip evacuation which avoids burn or jam. These HSS-G drills are suitable for all woods and specific hardwoods and are used in a machine.
This drill has a diameter of 7mm, a cutting length of 69mm and a total length of 108mm.
Helpful tips when it comes to drilling:
Make sure that the drill is properly seated in the (column) drill and firmly tightened.
If you drill wood that can cause irritation, wear a fine dust mask.
Keep your hands away from the drill when it is on.
Wood is drilled preferably at a high speed.
When drilling a deep hole, pull the drill back regularly to remove grit and prevent the wood from burning and damage your drill.
Tips & Tricks
Measuring = Knowing:
Always, really ALWAYS measure the diameter of your screw, bushing, ferrules or whatever, before you start drilling!
Use a good square ruler, geo-triangle or ruler to determine where your holes should be. Mark and measure again.
Prick your drilling holes with an eyeleteer so that your centering point stays in the right place.
If you need to drill completely through something, like the holes for your headstock, than clamp a wooden block at the back to prevent breakouts!
Countersink your jack input:
First drill the largest diameter to the right depth to countersink the outer ring of your cylinder jack. Then drill the thinner diameter of the bushing. This way your centerpoint remains intact.
Good to know!
At Guitar Goods we do our very best to make things as easy and fun as possible, for example: