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.
The tip of the screwdriver
There is the tip and the handle, I don't understand 'bottom' in a screwdriver.
A standard tip for a bellhop is 1 to 2 per bag they help you with.
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.
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
The standard amount is 10 to 15%.
A standard tip for an airport shuttle driver is around 15-20 of the fare.
A standard tip for a shuttle driver is typically around 15-20 of the total fare.
Standard (also known as flathead) & Philips. You use the type (there are many more) that match the slots in the screws that you are using.