CD-Q/CE-Q is used for 90 degree center hole processing. It can also be used to determine the position before drilling, as well as the refurbishment of the hole surface after the drilling.
·Center drill material：HSS
·Center hole angle：90°
·Bit groove shape：CD-QLow spiral groove CE-QHigh spiral groove
·Suitable cutting material：
[CD-Q]tensile strength750~1100N/mm2Alloy steel, tool steel, Quenched and tempered steel, etc.
[CE-S] tensile strength less than 750N/mm2 carbon steel, alloy steel, non - iron alloy and so on...