3.10mm Coolant-Fed Carbide Micro Drill 31mm LOC 70mm OAL 813-1220.1221 K228

This 3.10mm coolant-fed carbide micro drill from Kyocera is designed for deep-hole drilling applications where chip evacuation, coolant delivery, and hole quality are critical.

Part of the Kyocera Series 813 line, this drill features an internal coolant-fed design that helps improve cooling and chip removal during deeper drilling operations compared with conventional solid drills.

This tool has a 3.10mm cutting diameter, 31mm length of cut, 70mm overall length, and a 4mm shank. The 140° point and precision carbide construction make it well suited for accurate holemaking in demanding production environments.

Manufactured from sub-micron grain solid carbide, this drill is intended for users who need rigidity, precision, and reliable performance in deeper micro-drilling applications.

Common applications include:

• Deep-hole micro drilling
• Precision production drilling
• Coolant-through drilling applications
• Holemaking in difficult-to-evacuate materials
• CNC machining where internal coolant improves performance

Manufacturer: Kyocera

Manufacturer Part Number: 813-1220.1221

Country of Origin: United States

Benefits

• Internal coolant feed improves chip evacuation and cooling
• 31mm cutting length supports deeper drilling reach
• Sub-micron carbide provides rigidity and wear resistance
• 140° point geometry supports accurate holemaking
• 4mm shank provides secure toolholding

Specifications