Deep Hole Carbide Drills

The difference is the recommended maximum hole depth relative to the drill diameter. Shorter series generally provide greater rigidity, while longer series provide additional reach but require more careful control of entry, coolant delivery, runout, and chip evacuation.

Choose the shortest drill series that can safely reach the required hole depth. Excessive drill length may reduce rigidity and increase the risk of deflection, unstable chip evacuation, and drill breakage.

Internal coolant is strongly recommended for deep-hole carbide drilling because it helps deliver coolant to the cutting zone and remove chips from the hole. The required coolant conditions depend on drill diameter, hole depth, workpiece material, and machine capability.

A pilot or guide hole is commonly recommended for longer depth-to-diameter ratios to improve entry alignment and reduce drill deflection. The pilot-hole geometry should match the selected deep-hole drill and application.

Yes. Deep-hole carbide drills can be used for blind and through holes, but blind holes place greater demands on chip evacuation and coolant delivery because chips cannot exit from the opposite side.

Material-specific deep-hole drill options are available for steel, stainless steel, aluminum alloys, cast iron, titanium alloys, and other engineering materials.

Yes. Custom support can be provided according to the required diameter, hole depth, cutting length, overall length, shank size, coolant design, workpiece material, tolerance, and application conditions.