Metric hex bit set, No. HM1000
Photo credit: EZ Red
E-Z Red's metric hex bit set, No. HM1000, fits into 10 mm,12 mm or 17 mm wrench or socket and enables the user to remove hex bolts coming in 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 12 mm, 14 mm and 17 mm. This 12 piece set features ball detent holds the bit into the drive unit.