Tools & Resources. Most Men Don't Need PSA Tests, Doctors' Group Says. MONDAY, April 8 (HealthDay News) -- Men have long been encouraged to get prostate cancer screenings, but there's insufficient evidence that the benefits of a PSA test outweigh the substantial risks associated with the screening.
There are two types of crimp used when reloading handgun cartridges: the roll crimp and the taper crimp. Roll Crimping. With a roll crimp, the diameter at the very end of the case mouth is reduced, and rolled inward toward the bullet, leaving a slight radius at the top of the case.
Advertisement-Continue Reading Below. A roll cage is a specially-constructed tubular frame built in or around the cab of a vehicle to protect its occupants from injury in the case of an accident or rollover.A standard feature in race cars and stunt cars, roll cages are made of steel tubing and include a geometric design to enhance stability and strength.. Make Room. You need to remove the seats and carpet from the vehicle, so you can access the bare-metal floor. Also carpets and seats get in the way and pose a fire hazard. You may choose to remove the headliner as well, but it is nearly impossible to replace it after you've installed the roll bar.