Dormer A413 HSS High Speed Steel Step Drill Bit with 118 Degree Pilot and 180 Degree Counter Bore, Size M3, Single Pack

• 118 Degree Pilot and 180 Degree Counter Bore - Recommended for creating counter bored clearance holes for standard metric threads
• Steam oxide finish - Prevent work piece material from sticking to the cutting edge
• Specific pilot dimeter and length Designed to create the correct clearance drilling diameter and depth for standard threads
• Premium HSS material - Can be used for drilling many materials including steels, aluminium, stainless steel
• Versatile product - Can be used in both CNC and conventional machines

A413 from Dormer is recommended for creating counter - bored clearance holes for standard metric threads. The drill diameters are specified in metric coarse thread sizes which makes it really easy to select the right drill for the thread you want to create. Choose the metric thread form diameter the same as the thread and you can be sure you have the correct clearance and depth for standard threads. The A413 has 118 degree angle on the pilot drill and a 180 degree counter bore. It is made from High Speed steel so it is suitable for drilling a variety of materials including steels, aluminium and stainless steel, and has a steam oxide finish to help stop work piece material from sticking to the tool. The A413 can be used in both CNC and conventional machines.