Custom 特殊形状ドリル

Provide the テーパ角, end diameters and working length from the part drawing so the required conical profile can be reviewed.

Mark each step 刃径 and axial distance on the drawing, including any transition radius or chamfer between stages.

Identify the cutting length and the effective reach separately, with the neck clearance and access restrictions shown on the part drawing.

Mark the required coolant inlet and outlet positions, outlet directions and holder connection so the 内部給油 coolant layout can be reviewed.

Specify the chamfer angle and width, plus the adjacent surfaces and clearances that define access to the edge.

Show the slot width and depth together with the head and neck clearance needed to enter and machine the feature.