Ideal for tightening, clamping, twisting and turning Turn screw to adjust pressure and fit work. Stays adjusted for repetitive use Constructed of high-grade heat-treated alloy steel for maximum toughness and durability Guarded release trigger quickly unlocks and protects from accidental release Hardened teeth are designed to grip from any angle with 6 Koozie Cups, 10WR, 9LN, 7WR, 6LN, 5WR and 4LN