Fine series threads will resist stripping out better than coarse threads in areas where the external and mating internal threads are subjected to loads equal to or greater than the capacity of the screw or bolt
the tapping drill and break off tool needed for particular sizes of PowerCoil insert
Because carbide tools maintain a sharp cutting edge better than other tools
Select a drill bit that is suitable for drilling into the specific material - typically HSS or HSS-Co5
The 135º point should be used to cut harder steel materials especially in deep hole applications
Magnetic Core Drill Set Size:Set of 4 cutters: 14, 18, 20, and 22mm x 50mm Deep Magnetic Core Drill Set Fine series threads will resistSet of 4 cutters: 14, 18, 20, and 22mm Includes 1 pin to suit the cutters Made of high speed steel (HSS) with 5% cobalt for increased durability All components neatly organised in a heavy duty plastic case Universal Pin: Fits diametres 12MM 50MM Durability: High Speed Steel with 5% Cobalt for drilling harder materials Versatile Compatibility: Fits all magnetic based drills, including quick change systems Made in Germany