so that is fits into the screw nicely and for health and safety reasons i don't know about because i have bad health and safety.
The tip of the screwdriver
you can use a flat tip screwdriver or a nut driver Turn counter clockwise to loosen
There is the tip and the handle, I don't understand 'bottom' in a screwdriver.
a flat head screwdriver is used to drive or to screw screws.
Phillips, or Phillips head, refers to the shape of the screwdriver's tip. It forms an X or a cross at the tip, instead of being straight as in a flat head. Phillips head screws and screwdrivers are less likely to slip while being turned, but it's more important to use the right size to avoid damaging the screw head.
A screwdriver can be considered a wedge because the tip of the screwdriver is tapered to a point, which allows it to push into materials and separate them. The force applied to the handle of the screwdriver is transmitted to the wedge tip, allowing it to exert pressure and make it easier to turn screws.
Is there a standard ? - I have screwdrivers in 5 flat sizes ranging from 0.75 mm x 2mm wide, up to 2.5 x 18mm.
Very close to the tip of the screwdriver. The lip of the tin that the screwdriver presses down against is the fulcrum. The load is the tin lid, under the lip of which the tip of the screwdriver sits.
The best way to use a star tip screwdriver for assembling furniture is to ensure the screwdriver tip fits securely into the screw head, apply firm pressure while turning the screwdriver clockwise to tighten the screw, and avoid over-tightening to prevent damage to the furniture or screw.
an awl
Inclined plane
There are a few ways . . . 1. Point the screwdriver north and south, then tap on it for a while with a hammer or other steel device. 2. Rub the screwdriver for its entire length with a magnet for a while.