Our other sites:

How to customise a grinding wheel to sharpen a brad point bit?

Shop for Brad Point Bits

Image warning DIYers that the spurs on a brad point bit can be damaged during the sharpening process While many other types of drill bit can be sharpened effectively using a bench grinder, the spurs on brad point bits are at risk of being damaged or ground off unless you customise your wheel first.
A static grinding wheel dresser made with polycrystalline diamond and used for customising a grinding wheel to sharpen brad point bits For this, you will need a static diamond wheel dresser. This tool is shaped like a cuboid mounted on a long handle. The cuboid part of the tool is coated in polycrystalline diamond (PCD), which is one of the few materials that can grind a grinding stone.
Diagram showing how to measure the 35 degree angle for the notch you need to cut into your grinding wheel You will need to create a groove with one side ground at a 35 degree angle. This will form the shape of each spur.
Wonkee Donkee advises buying a spare grinder wheel if you are planning to customise one that you already own
Example of a wheel dresser, which can be used to change the shape of a grinding wheel Set the wheel dresser on your tool rest (the metal lip in front of the grinding wheel) and measure out a 35 degree angle from the narrow edge of the grinding wheel before activating it. It may help to make a mark on your tool rest so you can find the angle again without having to measure. Carefully slide the dresser forwards so that it makes contact with the wheel. It will begin to cut a notch into it.
Stop grinding once your notch is 10mm deep Once the groove is around 10mm (just under 1/2″) in from the edge of the grinding wheel, deactivate it.
A green light to show that your grinding wheel is now ready to sharpen brad point bits Your wheel is now ready to sharpen your brad point bits!