Here is a plastic tube containing 6 small drill bits - probably those you break so easily.

• 6-piece pack of fine high speed steel drill bits
• Includes six drills #60 through #70.
• Used with: wood, resin, jewelry, walnut, amber, beeswax, olive nut, beads, PVC, acrylic, plastic, and more.
• These high quality drills are strong and useful additions to any individuals workshop. 
• Drills come in a plastic tube pack
• Fits Excel's Pin Vise 70003 found here.

Package contains six drill bits, by Excel.