n this diamond wheel cutter, Laser refers to the profile applied to the wheel. This allows for a non-slip start and deeper scoring. This cutter excels at cutting thin glass (as fine as 0.03mm), LCD, half-tempered glass, sapphire, quartz glass, ceramic, glass tubes and standard silicon substrates. Wheel cutters produce a cleaner scribe line than point scribes and minimize the number of particles generated. Plastic handle is 5" long.