Brand: SUPAL
Packaging: 1, One plastic pipe packs one piece,10 pieces per group 2, Use air bubble to encase the palstic pipes 3, Put goods encased with air bubble paper into the carton box
Productivity: 1000000PCS
Transportation: Land,Air,Express,Ocean
Place of Origin: CHANGZHOU,JIANGSU
Supply Ability: 1000000PCS
Certificate: ISO
HS Code: 8207709000
Port: Shanghai,Shenzhen,Ningbo
Payment Type: T/T
Incoterm: CIF,FOB,EXW
Step drill bits are a type of drill bit with a stepped design, allowing them to drill holes of various sizes without the need to switch bits.
They are commonly used to drill holes in thin metal, plastic, and wood.
They have a conical shape with a series of stepped cutting edges, which allow them to quickly and easily drill a variety of hole sizes.
| Product name | SOLID CARBIDE TWIST DRILL |
| Co | 10% |
| Wc | 90% |
| TRS | 3600~4800 N/mm2 |
| HRA | 91.8-92.4 |
| HRC | 45/55/60/65 degrees |
| Grain size | 0.4-0.6μm |
| Item Code | D | l | L |
| D-010 | 0.5-0.7 | 6 | 30 |
| D-020 | 0.8-0.9 | 8 | 30 |
| D-030 | 1.0-1.7 | 10 | 30 |
| D-040 | 1.2-1.4 | 12 | 35 |
| D-050 | 1.5-1.7 | 14 | 35 |
| D-060 | 1.8-1.9 | 16 | 40 |
| D-070 | 2.0-2.4 | 18 | 40 |
| D-080 | 2.5-3.0 | 20 | 40 |
| D-090 | 3.1-3.9 | 25 | 50 |
| D-100 | 4.0-5.0 | 28 | 50 |
| D-101 | 5.1-6.0 | 30 | 60 |
| D-102 | 6.1-7.0 | 32 | 60 |
| D-103 | 7.1-11 | 38 | 70 |
| D-104 | 11.1-12 | 38 | 70 |
| D-105 | 12.1-14 | 40 | 80 |
| D-106 | 16 | 45 | 80 |
Product Categories : Carbide Drill Bits > Step Drills
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