Baolian M35 Cobalt Step Drill High Hardness Twist Drill Bit for Stainless Steel 304 Special Reamer Drill Machine Use

Sharp and fast cutting with minimal burrs

High drilling efficiency and stable operation

Long service life with reduced wear and breakage

Saves drill bits compared to conventional types (up to 2 bits per week)

| Diameter (mm) | Total Length (mm) | Working Length (mm) | Shank Diameter (mm) | Weight (g) |

|---------------|-------------------|---------------------|---------------------|------------|

| 3.0 | 61 | 35 | 2.8 | 3 |

| 3.2 | 65 | 36 | 3.0 | 3 |

| 3.4 | 65 | 36 | 3.0 | 4 |

| 3.5 | 70 | 38 | 3.0 | 4 |

| 4.0 | 75 | 42 | 3.5 | 5 |

| 4.2 | 75 | 42 | 3.8 | 5 |

| 4.3 | 75 | 43 | 3.8 | 5 |

| 4.5 | 80 | 48 | 4.0 | 8 |

| 4.8 | 86 | 52 | 4.8 | 8 |

Industrial-grade design standards

Precision manufacturing with strict quality control

Durable and reliable for professional use

High aesthetic appeal combined with robust performance

Provides excellent user experience with stable and fast drilling

Suitable for a wide range of materials and applications

Product images available for multi-angle viewing to ensure buyer confidence