Yanran Multifunctional Serrated Twist Drill High-Speed Steel Saw Drill Combined Punch Slotting Serrated Drill Bit [6.5mm] 2 Pieces

Recommended use with high-power hand drills or bench drills for optimal performance

Not ideal for low torque cordless drills

Drilling and slotting in thin wood boards, multilayer boards, solid wood, plastic boards, MDF, aluminum alloy, and thin iron sheets

Suitable for precise hole making and slot cutting in wood and plastic materials

For drilling, rotate drill clockwise (standard drill rotation)

For sawing/cutting, rotate drill counterclockwise (reverse rotation)

Clean sawdust from drill bit with wire brush during sawing for smoother operation

After sawing, deburr edges with files and sandpaper; for mirror finish, use 5000-7000 grit sandpaper

| Drill Diameter (Φ) | Drill Diameter (mm) | Working Length (mm) | Shank Diameter (mm) | Total Length (mm) |

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

| 3 | 3 | 35 | 2.5 | 60 |

| 4 | 4 | 37 | 3.5 | 70 |

| 5 | 5 | 49 | 4.5 | 79 |

| 6 | 6 | 52 | 5.5 | 84 |

| 6.5 | 6.5 | 55 | 6 | 85 |

| 8 | 8 | 65 | 7 | 95 |

| Drill Diameter (mm) | Recommended Speed (RPM) |

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

| 3 | 1400 |

| 4 | 1000 |

| 5 | 800 |

| 6 | 700 |

| 6.5 | 650 |

| 8 | 500 |

Dimensions may vary slightly due to production batch differences; actual measurements prevail.

Suitable only for thin wood, aluminum alloy, thin iron sheets, and plastic board slotting.

Use reverse rotation for sawing due to standard drill clockwise rotation.

Clean drill bit regularly during sawing to maintain efficiency.

Post-processing recommended to remove burrs and achieve smooth edges.

Precision manufacturing ensures sharp, durable cutting edges

Titanium coating enhances wear resistance and extends tool life

Designed for accurate, vibration-free drilling and cutting

Trusted quality derived from attention to detail and craftsmanship