Drill Bit Material: High-Speed Steel (HSS). 1 x 25-Piece HSS Twist Drill Bit Set + 1 x Iron Box. 1mm / 1.5mm / 2mm / 2.5mm / 3mm / 3.5mm / 4mm / 4.5mm / 5mm / 5.5mm / 6mm / 6.5mm / 7mm / 7.5mm / 8mm / 8.5mm / 9mm / 9.5mm / 10mm / 10.5mm / 11mm / 11.5mm / 12mm / 12.5mm / 13mm.
eBay