Dormer Pramet A225 7/32 Inch x 1/2 Inch HSS BS 60 DEG CENTRE DRILL BS 328

The Dormer Pramet A225 centre drill is a precision HSS tool sized 7/32 in diameter and 1/2 in long, designed to create accurate center holes in shafts and other rotating components. It provides a reliable starting point for secure workholding, making it ideal for engineers, machinists, and hobbyists using CNC or conventional machines.

Featuring a 120-degree pilot and 60-degree center cone, it delivers true centers with clean starts. The bright finish helps prevent workpiece material from sticking to the cutting edge, while the double-ended design gives you two usable drilling ends for greater productivity and better value per tool.

• Double-ended design: Two drilling ends provide increased productivity and economy by allowing a quick flip to a fresh tip without changing tools.
• Premium HSS material: High-speed steel offers durable performance across a wide range of materials, including steel, aluminium, and stainless steel.
• Center-hole geometry: 120° pilot with a 60° cone delivers accurate, concentric center holes to hold shafts securely during machining.

In practice, this centre drill streamlines setup, promotes precise centering, and delivers repeatable results across common materials. Its robust HSS construction, combined with a practical double-ended design, helps reduce downtime and extend tool life—making it a dependable choice for any workshop that relies on precise centers for reliable holding and subsequent operations.