The 8000 a0 external circlip pliers are manufactured to din 5254 form a and designed for use on 3 10mm diameter circlips to din 471 din 983 the forged heads are precision machined from special gedore chrome vanadium steel the straight tips have a diameter of 0 9mm and are hardened in oil then annealed for maximum strength with spring assisted opening and clamping protection the handles are dipped in red material for soft grip