Adjustable sleeve (DRV/DRZ/DRX) SHE type 3. Center height adjustment a) When there are no remaining cores and insert breakage near the center of the drill. This happens when the inner insert is set above the center height. (Fig. 7) Fig. 7 Insert breakage near the center of the drill Initial installation 180˚ Rotation Improved position of inner insert [How to adjust] (Inner insert positioned higher than normal) (Inner insert positioned lower than normal) Inner edge 1. Install the drill rotated 180°. Most problems will be solved by this method. (Fig. 8) oXf t-haxeismachine oXf t-haxeismachine Center of spindle Center of spindle Inner edge IInnnneerr eeddggee Center of drill Center of drill Inner edge Zooming near the center Zooming near the center Fig. 8 [How to adjust]2.If the core diameter becomes too large after the above adjustment, install the ofXt-haexims achinedrill by rotating 90° counter-clockwise as shown in Fig. 9 (Outer insert is positionedlower) and adjust the center height by moving the tool in theCenter of spindle90˚ RotationInner CenHteirghheeigrht edge adjustment by moLvoiwngetrhe toolK X-axis direction.(However, this will make it impossible to adjust the cutting diameter.) ofXt-haexims achine Caution: In case of installing the drill in the reverse direction (outer insert is Inner edge positioned above), the hole diameter will become smaller, which may cause the drill body to interfere with the drilled hole. Center of drill The best solution is to readjust the center position of the turret itself. Outer edge Inner edge Zooming near the center Inner insert positioned too far below center Fig. 9 b) Core with excessively large diameter (More than 1mm) This occurs when the inner insert is excessively below the center. This condition causes poor chip evacuation and an adjustment is required. [How to adjust]Install the drill rotating 90˚ as shown in Fig. 10. (Outer insert is positioned on theupper side) and adjust the center height by moving tool in the X-axis direction.(However, this will make it impossible to adjust the cutting diameter.)Inner insert is positioned excessively below the center.90˚ RotationCLeontwerehreight Outer edge adjustment by mHoviginhgetrhe tool Caution: In case of installing the drill in the opposite direction (Outer insert ispositioned lower), the hole diameter will become smaller, which may cause the ofXt-haexismachine ofXt-haexims achineOuter edge drill body to interfere with the drilled hole. The best solution is to readjust the center position of the turret itself. Inner edge Inner edge Fig. 10 K67 Drilling 90˚90 ˚