Model de biti de surubelnita: T3, T4, T5, T6, T7, T8, T9, T10, T15, T20, H0.9, H1.3, H1.5, H2.0, H3.0, H3.5, H4. 0, -1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, +1.0, 1.5, 2.0, 2.5, 3.5, Y2.0, Y2.5, triunghi 2.0/2.3, stea 2.0, punctul 1.5. Instrumente de dezmembrare pentru LED-DIY, telefoane mobile si computere etc. BITS Material: crom vanadiu, cu magnetic puternic.