Do-It Master Lock Ultimate Strength 70mm Stainless Steel Keyed Discus Padlock The Do-It Master Lock Discus Padlock features a 70mm wide stainless steel body for maximum strength, reliability and corrosion resistance. The fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. The 10mm diameter octagonal shackle is 16mm long and made of Tough-Cut boron-carbide, 50% harder than hardened steel, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide maximum resistance against prying and hammering. Features: - Model no. M40EURD - Excel 70mm mm discus padlock - Stainless Steel, - Octagonal Boron Shackle, - Black weather cover - Security rating 8,10, Keyed to differ, 4 keys - The covered keyway offers maximum weather protection, and reinforced body bumper protects against scratches. - Limited Lifetime Guarantee.