Your tonsils are gland-like structures in the back of your throat. You have one located in a pocket on each side. Tonsils are made of tissue that contains lymphocytes -- cells in your body that prevent and fight infections.onsil stones, or tonsilloliths, are formed when this trapped debris hardens, or calcifies. This tends to happen most often in people who have chronic inflammation in their tonsils or repeated bouts of tonsillitis.
A self-centering chuck, also known as a scroll chuck, uses dogs (usually called jaws), interconnected via a scroll gear (scroll plate), to hold onto a tool or workpiece.
Plumb, level, and square beams with the Robotoolz laser level. It features dot pointing, two adjustable line lengths and 3 speed spin modes so you can change the beam length and brightness. Up to 1/4 accuracy at 100 feet for plumb and level applications.uilders and contractors say the self-leveling laser levels are easy to set-up, very accurate, and efficient one-person lasers. The Spectra Precision Laser LL300 Automatic Self-leveling Level is an industry favorite with a laser accuracy of + or - 3/32 @ 100 ft. 1000 ft (diameter) range.