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A drill bit is a rotating cutting tool designed to create holes in various materials, including metal, wood, plastic, and concrete. Characterized by its sharp, spiral-shaped (helical) cutting edges, it is widely used in machining, construction, woodworking, and DIY projects.
Key Features:



| Parameter Category | Key Specifications & Details |
|---|---|
| 1. Basic Geometry | Diameter: 0.01mm to 100mm+; Point Angle: 118°/135°/90°; Helix Angle: 10°~40°. |
| 2. Shank Type | Round, Hex, Morse Taper (MT1-MT5), SDS-plus/max. |
| 3. Material & Coating | HSS, HSS-Co, Carbide, PCD; Coatings: TiN, TiCN, TiAlN, DLC. |
| 4. Precision | Tolerance Class: H7/H8/H9; Runout ≤0.01mm. |
| 5. Performance | L/D Ratio: ≤5 (Standard), up to >10 (Extra-deep). External or Through-hole coolant. |



Hard Materials: Choose carbide bits with 135° split points and TiAlN coatings.
Soft Materials: Opt for HSS with large helix angles and polished edges to prevent adhesion.



Sandstorm Steel