Cordless drills are very practical as there is no need to plug them into an outlet or deal with a cord getting in the way. Some drills have variable speed drives while others are single speed.
Drill bits are the final piece of a powered tool that cuts cylindrical holes into various materials. The bits are held in the drill, which provides torque and rotates the bits. The top part of the bit is called the shank.
This dark green and black cordless drill has a drill bit in its hand-tightened chuck and a black rubberized handle to provide good balance in the hand. Many cordless drills have a removable battery, two direction drive, and variable speed motors.
If you sent a PDF on your computer today, thank him. In 1980, he and a colleague created a way of sending digital documents to a printer, starting a company, Adobe.
Cade Metz. New York Times. Tue, 20 Apr 2021 22:23:36 +0000.
LOS ALTOS, Calif. (AP) — Charles “Chuck” Geschke — the co-founder of the major software company Adobe Inc. who helped develop Portable Document Format technology, or PDFs — died at age 81. ...
Washington Times. Sat, 17 Apr 2021 20:35:05 -0400.