Detail Specifications / Descriptions ◆ Shank: 1/4" Hex. Shank ◆ Contents: 6pcs Drills(2, 2.5, 3, 4, 5, 6mm) + 1pcs AC33 Quick Change Connector ◆ Available material: HSS for Drills ◆ Packing: Tray in Plastic Box