Page 85 - Demo

83GENERAL PURPOSE DRILLINGClamping PocketThe CHAM-DRILL clamping pocket is based on a principle of self-locking, controlled elasticity of the sides of the pocket in the tool. Positioning (centering) and mounting of the insert in the clamping pocket is designed according to the dovetail method. The dovetail joint is very strong because of the way the %u2018tails%u2019 and %u2018pins%u2019 are shaped, thus preventing the drilling head from being pulled out while removing the drill at the end of a drilling operation.Transmitting radial torque until the drilling head is locked in the clamping pocket is carried out by stoppers in the drilling head and in the clamping pocket of the drill body.stopperdovetaildovetailstopperdovetailExplanation of CHAM-DRILL Drilling Heads Description Example:IDI 150 - SG IC9081 2 31 Cutting Diameter (DC) DC2 Designation of the Drilling HeadSG %u2014 exchangeable drilling heads for general useSK %u2014 exchangeable drilling heads for drilling cast iron3 GradeIC908