30xD Deep Hole Carbide Drills

A 20xD drill is shorter and normally more rigid. A 30xD drill provides greater reach but requires stricter control of pilot-hole accuracy, spindle runout, coolant, chip evacuation, tool holding, and machine movement.

Selected cross-hole applications may be possible, but the internal breakthrough, feed reduction, cutting-edge support, and drill geometry must be reviewed before machining.

A compatible pilot hole is normally required for 30xD drilling. The diameter, tolerance, point geometry, and pilot depth should follow the selected drill specification.

Yes. Landun can review non-standard diameters, flute lengths, shank dimensions, coolant-hole designs, point geometries, coatings, step structures, drawings, samples, and replacement-tool projects.

Please provide:

• Workpiece material and hardness
• Required hole diameter
• Required hole depth
• Through-hole or blind-hole design
• Hole tolerance and straightness requirements
• Entry and exit surface conditions
• Cross holes or interrupted sections
• Pilot-hole diameter and depth
• Machine and spindle information
• Tool-holder information
• Expected spindle runout
• Coolant pressure, flow, and filtration
• Workpiece clamping method
• Expected production quantity
• Current chip-removal, deviation, wear, or breakage problems