FLEX 6 Amp 4 1/2 Angle Grinder. ( There are no reviews yet. ) The new FLEX L 7-12 115 features a Long-Life Motor with highly improved carbon brush lifetime along with high dust protection due to ironclad winding and encapsulated electronics. It is extremely lightweight easy to Made with .250 thick carbide chunks that allow extremely fast cutting that will not bind or load (an important factor in rescue cutting). Demo-Cut Rescue Blade. Size. CAT. 7 x .250 x 5/8. 04613. 12 x .250 x 1. 96301. 14 x .250 x 1.