Dormer A225BS3 HSS Centre Drill Bit

This is a high-speed steel (HSS) center drill designed for drilling precise center holes in components that require machining between centres. It features a 120° point angle with a 60° included countersink, suitable for both hand and machine use. The drill has a tip diameter of 1/4 inch, working length of 3/32 inch, and an overall length of 2 inches. Standard BS 328 and uncoated HSS material ensure reliable performance across suitable metals. The product is compatible with hand tools and drilling machines and may be used in both CNC and conventional setups. Double-ended design provides two drilling ends for increased productivity and economy. This drill is appropriate for drilling in steel, cast iron, and alloy steels. Bright finish helps minimize sticking of workpiece material to the cutting edge. The description consolidates multiple vendor details into a single, coherent specification for ease of reference.

Technical specifications

• Tip diameter: 1/4 inch
• Working length: 3/32 inch
• Overall length: 2 inches
• Point angle: 120° with 60° countersink
• Standard: BS 328; Material: HSS, uncoated
• Compatible with hand tools and drilling machines