The Oxford Nemesis Chain Lock is an ultra strong chain lock which can also be used as a disc lock.High security, independently approved chain lock which can also be used as a disc lock16mm hardened steel shackle prevents bolt croppingAnti-pick and anti-drill lock cylinderShock resistant rubber over-moulded lock body3 (replaceable) keys provided, with a dust cover to protect the lock barrel from dirt ingressDouble security by securing onto disc with chainThe Padlock on the Oxford Nemesis Chain Lock is known for it's high security and being independently approved as a chain lock and also as a disc lock. It is made with a 16mm hardened Ni-Cro-Mo steel shackle which prevents any bolt cropping. The anti-drill and anti-pick lock cylinder also makes this extremely difficult to break through. The lock body is made from a shock resistant rubber. There are 3 keys provided with this chain and the lock barrel has a dust cover to protect it from any dirt ingress.The chain is made from reassuringly