**Dormer Drill Bits** are high-quality cutting tools made by **Dormer Pramet**, a well-known manufacturer of drills, end mills, taps, and other metal cutting tools. The **Dormer** brand has a long history (over 100 years) and is recognized for producing **precision-engineered, durable, and high-performance drill bits** for various applications.---### ? Types of Dormer Drill BitsDormer offers a wide range of drill bits, suited for everything from general-purpose drilling to specialized industrial applications:#### 1. **HSS (High-Speed Steel) Drill Bits*** **Most common type*** Suitable for drilling materials like steel, cast iron, aluminum, brass, and plastics* Examples: Dormer A100, A002#### 2. **Cobalt (HSS-E) Drill Bits*** Enhanced with cobalt for increased heat resistance* Excellent for tough materials like stainless steel and titanium* Examples: Dormer A110, A117#### 3. **Carbide Drill Bits*** Extremely hard and wear-resistant* Ideal for high-speed machining of tough materials or composites* Used mostly in CNC and industrial applications#### 4. **Indexable Drills*** Feature replaceable cutting inserts* Used in heavy-duty production environments* Cost-efficient for high-volume drilling---### ? Popular Dormer Drill Bit Series| Series | Type | Description || ------------- | -------------- | ----------------------------------------- || **A002** | HSS TiN-coated | General-purpose drill, very versatile || **A100** | HSS | Bright finish, precision work || **A110** | HSS-E (Cobalt) | For tough materials like stainless steel || **A147** | HSS | Stub length, increased rigidity || **R100/R520** | Solid carbide | High-speed drilling in hardened materials || **M** Series | Indexable | Heavy-duty industrial applications |---### ? Key Features of Dormer Drill Bits* Precision ground geometry* Strong web design for stability* High-performance coatings (e.g., TiN, TiAlN)* Consistent quality across batches* Designed for both **manual and CNC** machine use---### ?? Applications* **General engineering*** **Automotive and aerospace*** **Oil & gas*** **Toolmaking and die casting*** **Construction and fabrication**---
