Name: Centering drill
Material: HSS-CO with diamonds
Hardness: HRC62-64 degrees
Purpose: Punch fixed-point holes, orifice chamfering, point holes and chamfering are completed at once.
Before drilling, use a centering drill to drill an initial hole with a depth of 1-2 times the diameter to ensure ordinary drilling.
The accuracy of the hole processing of the head does not reserve chamfering for tapping, which is convenient for tapping.
Processable: stainless steel below HRC38 degrees, mold steel, spring steel, 45 steel, A3 steel, cast iron parts, copper and aluminum, etc.
We are a professional tooling supplier, located in Changzhou, Jiangsu, China.
We are distributing High Performance Tungsten Carbide Inserts, Milling Cutters, Standard Solid Carbide End Mills, Miniature Helix Micro End Mills, Nano-Grain End Mills, Drills, and Custom Designed Special Cutting Tools, and available in special diameters
We are also Distributing top brands of high quality tools from China.
We've been in the precision tools market for more than 15 years.
Our amazing prices together with great quality and superb service is the key for our successes.
Please don't hesitate to contact us if you have any questions or concerns.
Handling Time is usually 3-7 days.
We use several shipping companies, shipping options are according to destination country.. standard & express.
Shipping options: (You'll be able to select it on checkout page)