Dormer A125 HSS Extra Length Drill 4.0 mm x 160 mm Pack of 1

The Dormer A125 HSS Extra Length Drill is a general-purpose drill designed for long reach and deep hole applications. It features a 4 mm diameter with a total length of 160 mm and a cutting length of 100 mm, following BS 328. The drill is capable of drilling up to 10 times its diameter, making it suitable for drilling deep holes in steel and other metals. It has a convex cutting edge at 118°, and is made from HSS with a vapor ring and h8 tolerance. Suitable for use in compatible drill chucks that accept 4 mm shanks, it is intended for use in machines or hand-held applications where extended reach is required.

Features

• 4 mm diameter, 160 mm total length
• Cutting length 100 mm, BS 328 standard
• HSS with vapor ring, 118° convex point
• Drills up to 10x diameter in steel
• Long reach for deep holes and hard metals
• Compatible with 4 mm shank chucks

Technical details

Designed for drilling deep holes up to 10xD in steel without centering. HSS provides good hot hardness, and the 118° conventional point allows easy re-grinding. A steam oxide finish reduces built-up edge and improves lubricity. The extra length enables deeper holes or greater reach, suitable for use on machines or hand-held applications.