Yanran Triangle King Drill Set High Hardness Tile Drill Bits [4mm] 6 Pieces

Suitable for drilling glass, plastic, wood, walls, marble, and concrete

Dry drilling recommended for walls, wood, plastic, aluminum, and copper

Wet drilling (with water cooling) required for concrete, stainless steel, steel, glazed tiles, red bricks, ceramic tiles, marble, glazed tiles, aerated concrete, and granite

| Drill Diameter | Head Length | Drilling Depth | Total Length | Shank Diameter | Shank Type | Primary Material Targeted |

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

| 12 mm | 70 mm | 70 mm | 120 mm | 9 mm | Triangular | Concrete, Steel, Iron, Aluminum |

| 10 mm | 70 mm | 70 mm | 118 mm | 7 mm | Triangular | Concrete, Steel, Iron, Aluminum |

| 8 mm | 66 mm | 66 mm | 113 mm | 6 mm | Triangular | Concrete, Steel, Iron, Aluminum |

| 6 mm | 54 mm | 54 mm | 100 mm | 5 mm | Triangular | Concrete, Steel, Iron, Aluminum |

| 5 mm | 41 mm | 41 mm | 85 mm | 4 mm | Triangular | Concrete, Steel, Iron, Aluminum |

| 4 mm | 40 mm | 40 mm | 77 mm | 3.2 mm | Triangular | Concrete, Steel, Iron, Aluminum |

| 3 mm | 35 mm | 35 mm | 62 mm | 2.3 mm | Triangular | Concrete, Steel, Iron, Aluminum |

Aluminum alloy, wood, plastic, copper, stainless steel, steel, granite, marble, ceramic tiles, glass, aerated concrete

| Material | Recommended Speed (RPM) | Drill Function | Notes |

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

| Granite / Hard Stone| 1000 - Full Speed | Impact function required| Use impact mode for best results|

| Marble | 1000 - Full Speed | Moderate force drilling | |

| Ordinary Ceramic Tile| 1000 - Full Speed | No impact, moderate force| |

| Super Hard Ceramic Tile| 300 - 500 Full Speed | Use ARTU tile drill | |

| Glass | 300 - 700 Full Speed | Requires liquid cooling | |

| Hard Wood | 800 - 1500 Full Speed | Suitable for hand or bench drill | |

| Soft Wood | 1500 Full Speed | Suitable for hand or bench drill | |

| Plastic | 1000 - 1500 Full Speed | Suitable for hand or bench drill | |

| Specialized Grinding Stone | 800 Full Speed | For heavy re-sharpening | |

The Bawang Drill Bit is a versatile "home decoration drilling little king," designed to solve multiple drilling problems with one set.

The triangular shank design ensures compatibility and secure clamping with various drill types.

Double helix design enhances chip removal efficiency, improving drilling speed and quality.

Suitable for both dry and wet drilling depending on material hardness and heat generation.