security lock, pickproof lock, combination lock(IS

Security lock 1)Three combination wheels for 1,000,000 possible combinations 2)Tested against expert manipulation for 20 man-hours 3)Group 1R version tested against radiological attack for 20 man-hours 4)Patented S&G torque adjuster enhances security by maintaining proper wheel pack tension 5)Integral relock trigger thwarts punch attacks 6)reset password freely 7)Metal wheels (brass and aluminum) in the Group 1 version for long, dependable life 8)Acetal resin wheels in the group 1R version for radiological attack resistance 9)Double thickness brass lever