The Sunex Premium 1/2" Impact Gun, No. SX231P, doesn't include any titanium parts, Kevlar housings or LEDs, and as the anvil is most prone to fracturing during usage, Sunex has reinforced theirs with a specialized hardened alloy. The precision CNC-machined components allow the SX231P to have over 11 percent stronger torque from reduced friction, according to the company.