RUKO MGB DIN 2182 HSSCo 60° Center Drill 1.0 x 3.15 x 31.5 mm

Precision center holes are essential for accurate machining between centers, but standard drills often wander or wear quickly on tough materials. This RUKO center drill solves that with a cobalt-alloyed high-speed steel body that stays sharp longer and a 60° countersink angle that matches standard lathe centers for reliable alignment.

Who is it for

Machinists and metalworkers who need to create accurate starting points for drilling or turning operations on steel, cast iron, and non-ferrous metals. It fits any standard drill chuck with its cylindrical shank.

Main features

• HSSCo (cobalt high-speed steel) resists heat and wear for extended tool life
• Form A without safety chamfer for straightforward center hole geometry
• Ground profile with h8 shank tolerance for precise concentricity
• Right-hand cutting direction for conventional drilling
• Bright uncoated finish reduces friction and chip adhesion

Specifications

• Standard: DIN 2182
• Drill type: Center drill
• Material: HSSCo
• Pilot diameter (d1): 1.0 mm
• Body diameter (d2): 3.15 mm
• Total length (l1): 31.5 mm
• Countersink angle: 60°
• Shank type: Cylindrical
• Cutting direction: Right-hand cut
• Surface finish: Bright (uncoated)
• Manufacturing process: Ground profile
• Tolerance: h8

Tips

Use a cutting fluid suitable for the workpiece material to improve finish and tool life. For best results, run the center drill at the recommended speed for its pilot diameter and feed steadily without excessive pressure.