Home » 12 Pc Quick Release Drill Bit Set 1/16″ – 1/2″ 12 Pc Quick Release Drill Bit Set 1/16″ – 1/2″ Specifications Set includes: 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", & 1/2" 1/4" Quick Release Adapter Included with Set 135-Degree Split Point Item Number: TAR12QK