Yanyan Woodworking Countersink Drill Hex Shank Four-Slot Four-Blade Hole Punch and Reamer Tool 10+12+13+14mm [4-Piece Set]

Recommended for use with lithium battery drills under 18V (low torque drills not recommended)

After use, clean surface and apply anti-rust oil to prevent corrosion

Cutting edge can be sharpened with a file after wear

Standard Single Drill Bit (Non-detachable Shank)

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

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

| 12 | 70 | 165 | 6.35 |

| 13 | 70 | 165 | 6.35 |

| 14 | 70 | 165 | 6.35 |

| 15 | 70 | 165 | 6.35 |

| 16 | 70 | 165 | 6.35 |

| 18 | 70 | 165 | 6.35 |

| 19 | 70 | 165 | 6.35 |

| 20 | 70 | 165 | 6.35 |

| 22 | 70 | 165 | 6.35 |

| 24 | 70 | 165 | 6.35 |

| 25 | 70 | 165 | 6.35 |

| 26 | 70 | 165 | 6.35 |

| 28 | 70 | 165 | 6.35 |

| 30 | 70 | 165 | 6.35 |

| 32 | 70 | 165 | 6.35 |

| 35 | 70 | 165 | 6.35 |

Multi-functional Single Drill Bit Set (Interchangeable Shank)

| Diameter (mm) | Working Length (mm) | Total Length (mm) | Hex Shank Diameter (mm) | Electric Wrench Shank Diameter (mm) |

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

| 14 | 75 | 130 | 6.35 | 12.7 |

| 16 | 75 | 130 | 6.35 | 12.7 |

| 18 | 75 | 130 | 6.35 | 12.7 |

| 20 | 75 | 130 | 6.35 | 12.7 |

| 22 | 75 | 130 | 6.35 | 12.7 |

| 25 | 75 | 130 | 6.35 | 12.7 |

Lithium battery drills

Hand drills

Bench drills

Multi-spindle drilling machines

Wood product drilling

Door lock holes

Drawer pin holes

Plastic products

Wood and plywood drilling

Plastic hole opening

Stone

Ceramic tiles

Metal

Glass

All dimensions are manually measured; slight deviations may occur

Shank is solid and non-detachable for durability

After use, clean and apply anti-rust oil to maintain tool life

Sharpen cutting edges with a file when dull

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