1. This lock cylinder is crafted from quality materials for durability, resisting breakage to provide reliable security that prevents intruders from gaining access using additional tools. 2. This cylinder door lock barrel features antipick and antibump protection, ensuring robust home security. 3. Inserting the key ensures smooth rotation without jamming, making it effortless to open and close the lock cylinder. 4. These door locks are compatible with all door types, including wooden, patio, and composite doors. They serve as ideal replacements or installations. 5. The drillresistant function incorporates nickelplated hardened steel moving pins, guaranteeing longlasting durability. 6. Meticulously designed for safety, this lock offers antibump, antipry, and antidrill protection. 7. Suitable for all door types—wood, metal, patio, and composite—this lock works as both a replacement and a installation.