tools

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-# drill-bit-dat

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-木工尖头钻 - [[Brad-point-drill-bit-dat]]

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-塑料专用钻 - Plastic drill bit

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-阶梯钻最佳 - Step drill bit

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-Twist drill bit

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-- [[drill-bit]] -[[mechanics]]

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-

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-## targeted materials

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-- [[glass-dat]] - [[marble-dat]]

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-- [[ceramic-tile-dat]] - [[Concrete-dat]]

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-- [[plastic-dat]]

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-- [[wood-dat]]

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-- [[metal-dat]]

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-- [[stone-dat]]

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-

-### Drill Bits: Ceramic Tile vs Glass

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-No — the drill bits for **ceramic tile** and **glass** are **not exactly the same**, though they are similar in some ways. Here’s the comparison:

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-| Material | Recommended Drill Bit | Notes |

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

-| **Ceramic Tile** | Carbide-tipped or diamond-tipped tile bit | Usually has a spear-shaped or pointed tip to pierce the glazed surface without cracking. Works best on glazed surfaces; slower speed, light pressure. |

-| **Glass** | Diamond-tipped or specialized glass/ceramic bit | Often conical or pointed, designed for brittle materials. Must drill at low speed, with water or lubrication, and ideally from both sides. |

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-## Key Differences

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-1. **Tip shape**:

- - Tile bits often have a **spear point** (good for glazed tiles)

- - Glass bits have a **small conical/diamond tip** to reduce chipping

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-2. **Brittleness**:

- - Glass is more prone to cracking, so drilling requires more care, water/lubrication, and two-sided drilling.

- - Tile can usually handle light drilling from one side.

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-3. **Speed and pressure**:

- - Both need low speed and light pressure, but glass is **far less forgiving** than tile.

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-

-

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-### glass

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-- [[glass-dat]]

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-## ✅ Recommended Drill Bits

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-| Type | Use | Features |

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

-| Glass/Ceramic bit (diamond-coated) | Drilling | Conical tip for brittle materials |

-| HSS glass-specific bit | Small holes | Low speed, use with cooling |

-| Diamond conical bit | Precision holes | Best for thick or hard glass |

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-

-- 玻璃/瓷砖钻头（金刚石涂层） - 金刚石锥钻头 - HSS 玻璃专用钻头

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-## purpose

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-### polishing

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-

-

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-## ref

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-- [[mechanics-dat]]

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-

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-# mechanic-tools-dat

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-- [[Wrench-dat]]

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-- [[screws-dat]] - [[hex-socket-screw-dat]]

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-- [[hex-socket-screwdriver-dat]]

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-- [[protective-glass-dat]]

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-

-## Socket Wrench Drive

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-### Common Socket Wrench Drive Sizes:

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-| Name | Drive Size | Square Drive (mm) | Typical Use Cases | CN |

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

-| Small | 1/4" drive | 6.35 mm | Electronics, precision work, small screws | 方头 小飞 |

-| Medium | 3/8" drive | 9.5 mm | Household use, light automotive repair |

-| Large | 1/2" drive | 12.7 mm (aka 12.5) | Automotive, heavy torque applications | 大飞 |

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-

-

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-## 🔧 Hex Bolt Screwdriver Size Categorization

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-### 1. By Tip Size (Across Flats)

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-The most important measurement is the **distance across the flat sides of the hex tip**.

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-#### 🧮 Metric Sizes (in millimeters)

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-1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc.

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-#### 📏 Imperial Sizes (SAE, in inches)

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-1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", etc.

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-> 🔹 These sizes must match the hex socket of the bolt exactly.

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-## ref

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-- [[mechanic-tools]] - [[mechanics]]

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-# protective-glass-dat

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-Protective glasses should be **impact-resistant, lightweight, optically clear**, and sometimes **chemical or scratch-resistant** depending on the usage environment.

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----

-

-## 🥇 1. Polycarbonate

-- **Most common material** for safety glasses.

-- **Advantages:**

- - Extremely **impact-resistant** (up to 10x stronger than glass or standard plastic)

- - Lightweight and comfortable for extended wear

- - Naturally blocks **100% UV rays**

-- **Disadvantages:**

- - More prone to **scratching** (usually comes with an anti-scratch coating)

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----

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-## 🥈 2. Trivex

-- A newer alternative to polycarbonate with improved clarity.

-- **Advantages:**

- - High **impact resistance**

- - Superior **optical clarity**

- - Lightweight and provides UV protection

-- **Disadvantages:**

- - **More expensive** than polycarbonate

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-- [[Trivex-dat]]

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-## ref

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-- [[mechanic-tools-dat]]

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-# screw-drivers-dat

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-

-

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-

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-## ref

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-- [[screw-drivers]]