Rapid drill bit sharpening for beginners

Here is how to sharpen drill bit rapidly for beginners
1. Dress the grinding wheel to make sure that the working surface is flat and parallel to the guard or stage .
2. Set the grindstone stage about a millimetre or less from the wheel . This is for safety so that nothing gets pulled in between the grindstone and the stage . Also for safety do not wake loves or any loose clothing around a grindstone especially not a tie unless you want your face pulled up against the grindstone . Also always wear safety glasses when using a grindstone as bits of the wheel or bits of steel can come flying wolf and cause injury . Make sure the stage is set above the midpoint Or spinning axis of the wheel. Grinding Should always be done above the midline of the wheel for safety becausr above the midline the wheel will push you away and below the wood midline the wheel will suck you in .
3. Draw a series of parallel lines on the stage about 60 degrees off the working face of the wheel . This will help you to keep your drill bit at the correct angle to the wheel while sharpening .
4. Line up your drill bit parallel to one of the lines you’ve drawn on the stage put the cutting edge on one side horizontal and lower the Shank of the drill below the cutting edge by about 10 degrees . Now start by dressing the cutting edge first with gentle pressure on the wheel once the cutting edge has been dressed then sweep up keeping the cutting edge horizontal And keep your sweep vertical don’t slew off one side or the other of the wheel . Because you’re working above the centre of the wheel it will ensure that the cutting edge will be your leading edge And the working face will taper away to the trailing edge At a relief angle of about 10 degrees . It is necessary to sweep up with the sharpening motion so that we don’t get a concave working surface due to the shape of the grinding wheel. When sharpening small diameter drills say about four millimetres or less it is not necessary to sweep up and one can just place the drill against the wheel keeping be cutting edge horizontal and dropping the Shank about 10 degrees and just pressing it against the face of the grinding wheel. Now flip the drill bit through 180 degrees and dress the other side try and keep everything the same as the first side because it’s imperative that you two working faces are identical Mirror images of each other .
5. It is imperative that both working faces of the drill bit or identical and that they meet in the centre of the drill bit.
6. Drill bits are made from harden steel so it is imperative to not overheat them when you sharpening them . Use water as cooling for sharpening, This is probably not necessary if you just touching up.
7. A large area working face on a wide bore drill bit may cause drag and some friction when drilling some technicians prefer to reduce the size of the working face by grinding a 45 degree slope on the trailing edge thus reducing the width of the working face and this is supposed to make the drill more efficient and put less strain on the drill and drill bit itself. It also reduces the length of the chisel edge by converting some of the chisel into a type of cutting edge thus assisting with penetration of the metal surface.
Here are some time stamps for browsing the content of this video:
00:00 Beginning
01:45 Twist drill design features relevant to sharpening
01:57 Twist drill cutting edge, trailing edge and chisel edge
02:51 Pilot hole for twist drill
03:29 Twist drill sharpening, point angle
04:14 Twist drill cutting edge sharpening
04:34 How a twist drill functions
05:12 Twist drill relief angle sharpening
06:45 Setting up grinding wheel for twist drill sharpening
08:21 Dressing a grinding wheel for drill bit sharpening
08:55 Aligning the drill bit to the grinding wheel for sharpening
11:50 Twist drill sharpening demonstration
15:20 Tips on drilling through metal with a twist drill
18:55 Trouble shooting twist drill bit sharpening problems
Here is a link to the blog article:
https://basiclowdown.com/rapid-drill-bit-sharpening-for-beginners/

Some more useful ideas on sharpening drills: https://youtu.be/DhJidSedZn0?si=C-WAjrcRCJ327u2_
https://youtu.be/y0SQkzScQk0?si=dLSM0eFbsndpY2B0

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Видео Rapid drill bit sharpening for beginners канала AnnMatt Erasmus