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- HSS step drill, bright finished/HSS step drill, Tin-coated
- SERIES NO: 925/926
- QUALITY RANK: MPP
- PACK TYPE: PVC BAGPLASTIC TUBESANDWICH BLISTERDOUBLE BLISTERSKIN PAC
- BRAND APPLICATION: OEM BRAND
- APPLICATIONS: TO DRILL VARIOUS CONCRETEBRICKSTONEMASONRY BUILDING MATERIALSETC
- CERTIFCATE: PGMISO9001
Ideal for drilling in alloyed and unalloyed steel, stainless steel, etc
Precision drilling in cable ducts and for switch cabinets.
Diameter marked on the drill bit
Extremely long service life. Max cutting depth of each diameter up to 5mm.
| ITEM NO. | DIAMETER(MM) | Step QTY. | Total Length（MM） | Diameter Of Shank（MM） |
| 1230412051 | 4, 6, 8, 10, 12 | 5 | 65 | 10 |
| 1230412091 | 4, 5, 6, 7, 8, 9, 10, 11, 12 | 9 | 65 | 10 |
| 1230420091 | 4, 6, 8, 10, 12, 14, 16, 18, 20 | 9 | 75 | 10 |
| 1230422101 | 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 | 10 | 80 | 10 |
| 1230430141 | 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 | 14 | 100 | 13 |
| 1230432151 | 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 | 15 | 105 | 13 |
| 1230439141 | 4, 6, 8, 10, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39 | 14 | 107 | 13 |
| 1230535131 | 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, 35 | 13 | 100 | 13 |
| 1230538141 | 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, 35, 38 | 14 | 95 | 13 |
| 1230618071 | 6, 8, 10, 12, 14, 16, 18 | 7 | 67 | 10 |
| 1230620081 | 6, 8. 10, 12, 14, 16, 18, 20 | 8 | 71 | 10 |
| 1230624101 | 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 | 10 | 80 | 10 |
| 1230625071 | 6, 9, 12, 16, 20, 22.5, 25 | 7 | 65 | 12 |
| 1230630131 | 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 | 13 | 98 | 13 |
| 1230630101 | 6, 9, 12.7, 15.2, 18.6, 20.4, 22.5, 25.5, 28.3, 30.5 | 10 | 100 | 13 |
| 1230632081 | 6, 10, 14, 18, 22, 26, 29, 32 | 8 | 75 | 13 |
| 1230632091 | 6, 9, 12, 16, 20, 22.5, 25, 28.5, 32 | 9 | 76 | 13 |
| 1230637121 | 6, 9, 12.5, 15.2, 18.6, 20.4, 22.5, 26, 28.3, 30.5, 34, 37 | 12 | 100 | 13 |
| 1230638121 | 6, 9, 13, 16, 19, 21, 23, 26, 29, 32, 35, 38 | 12 | 100 | 13 |
| 1230640161 | 6, 11, 17, 23, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 | 16 | 105 | 13 |
| 1230936101 | 9, 12, 15, 18, 21, 24, 27, 30, 33, 36 | 10 | 86 | 13 |
| 1231020111 | 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 | 11 | 88 | 10 |
| 1231220091 | 12, 13, 14, 15, 16, 17, 18, 19, 20 | 9 | 76 | 10 |
| 1231338101 | 13, 16, 19, 21, 23, 26, 29, 32, 35, 38 | 10 | 112 | 13 |
| 1231424061 | 14, 16, 18, 20, 22, 24 | 6 | 67 | 13 |
| 1231425071 | 14, 16, 18, 20, 22, 24, 25 | 7 | 71 | 13 |
| 1232030111 | 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 | 11 | 88 | 13 |
| 1232034081 | 20, 22, 24, 26, 28, 30, 32, 34 | 8 | 75 | 13 |
| 1233040111 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 | 11 | 98 | 13 |
| 1234050111 | 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 | 11 | 107 | 13 |
| 1235060111 | 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60 | 11 | 120 | 13 |