Accuracy starts at the first contact, and centre drills help you start true. Used in hole making to reduce wander and improve alignment, they set up the next operation to succeed – whether that’s drilling, reaming, or deeper work. The result is more consistent positioning, fewer surprises, and better downstream quality.
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Showing 4 products
Category
HSS
Standards
Type
ASA Centre Drills
Coating
Category
HSS
Standards
Type
Ground
Coating
Category
HSS
Standards
Type
Ground
Coating
Category
HSS
Standards
Type
Ground
Coating
Centre drilling helps create a controlled starting point before the main drilling operation. By reducing drill wander and improving alignment, a centre drill bit supports more accurate positioning in applications where the first contact with the workpiece can affect the final hole quality.
The right centre drill depends on the application, workpiece material and required hole preparation. Centre drill sizes should be selected based on the following operation, whether it involves drilling, reaming or deeper hole-making work. Choosing the correct size and type helps improve stability, tool guidance and consistency across repeated production cycles.
Addison offers centre drills in Plain / Bell Type, Type A, Type B and Type R options, covering HSS tools manufactured to standards such as IS, DIN, ISO, BS and ASME. With coating options including White, BT and TiN, Addison centre drills support reliable hole preparation across workshop, maintenance and industrial machining requirements.
