The drilling angle of an SDS-Plus drill bit, or any drill bit for that matter, depends on the specific drilling task and the desired result. In general, when drilling holes with SDS-Plus drill bits, it's best to maintain a perpendicular (90-degree) angle between the drill bit and the work surface. This means that the drill bit should go straight into the material.
However, there are situations where you might need to drill at an angle other than 90 degrees. For example:
Angled Holes: If you need to create holes at an angle to the work surface, you can adjust the angle of the drill bit accordingly. Be sure to secure the workpiece and maintain the desired angle throughout the drilling process.
Counterboring and Countersinking: In some applications, you may need to create counterbored or countersunk holes, which require drilling at an angle to accommodate screws or fasteners. These angles are typically specified in project plans or guidelines.
Angular Drilling: Some projects, such as woodworking or metalworking, may require drilling at specific angles to achieve a desired joint or connection. In such cases, you would adjust the angle of the drill bit or the workpiece accordingly.
Curved Surfaces: When drilling on curved or irregular surfaces, the drilling angle may need to be adjusted to follow the contour of the material.
In these scenarios, it's essential to have a clear plan and understanding of the required drilling angle before beginning the task. Proper setup, clamping, and use of jigs or guides can help you maintain the desired angle during drilling.
For standard, straight holes into materials like concrete, masonry, or wood, the perpendicular (90-degree) angle is typically used for clean and accurate drilling.