size: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6 ,6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10mm
YY-H1905-1     roll forged black finished drills
YY-H1905-2     half ground black finished drills
YY-H1905-3     half ground bright finished drills
YY-H1905-4     half ground tin coated drills
YY-H1905-5    fully ground bright finished drills
YY-H1905-6    fully ground black finished drills  
YY-H1905-7    fully ground tin coated drills
YY-H1905-8    cobalt drills
YY-H1905-9    turbo max drills(the highest quality drills)
package: plastic box with double blister