SDR-DDR Series

Stepless Since there is no step, there is less resistance and faster drilling than with a normal step drill.Non-stress Ideal for drilling "through holes" when screwing in studs + studs.Aurora Coating Aurora Coating (TiAICN titanium aluminum carbonitride) is applied to the cobalt vice, which significantly improves surface hardness, heat resistance, abrasion resistance, and adhesion resistance compared to normal TiN coating, resulting in a longer life.
XR thinningThe cutting edge is XR thinning, which firmly bites into the material and enables stable drilling.

Applications <br>Studs/runners/anti-vibration/W-frame/wood/gypsum board/iron (2mm), etc.