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

Avoid drilling reinforced steel to prevent edge chipping

Cooling with water recommended when drilling hard materials to prevent overheating

High precision and fast drilling speed

Durable and resistant to wear and breakage

Reduces drill bit consumption compared to competitors

Improves work efficiency and reduces labor intensity

| 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 |

Manual measurements may have slight deviations; actual product dimensions prevail

High aesthetic value combined with robust performance

Suitable for professional and industrial use

Provides excellent user experience with stable and quick drilling

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