RUKO HGB-Set DIN2181 HSS 60° 7/16x Center Drill Set, 7 Pieces

Machinists and metalworking professionals rely on precise center holes for accurate drilling and turning operations. This RUKO center drill set provides a range of sizes to create accurate starting points on workpieces, ensuring subsequent drilling or machining processes are perfectly aligned.

Key specifications

• Tool type: Center drill set
• Standard: DIN 2181
• Form: A (without protective chamfer)
• Material: High-speed steel (HSS)
• Countersink angle: 60°
• Number of pieces: 7
• Drill diameters (d1): 1.0 mm, 1.6 mm, 2.0 mm, 2.5 mm, 3.15 mm, 4.0 mm, 5.0 mm
• Body diameters (d2): 2.5 mm, 4.0 mm, 5.0 mm, 6.3 mm, 8.0 mm, 10.0 mm, 12.5 mm
• Shank type: Cylindrical
• Surface finish: Bright
• Packaging: Robust metal case

Why choose it

The set is manufactured from high-speed steel, offering good heat resistance and durability for demanding workshop use. The 60° countersink angle is suitable for creating standard center holes that accommodate lathe centers and provide proper seating for subsequent drilling. The included metal case keeps the drills organized and protected.

Ideal use cases

• Preparing workpieces for turning between centers on a lathe
• Creating accurate starting points for drilling operations in metal
• Producing center holes in steel, cast iron, and non-ferrous metals
• Industrial, workshop, and DIY metalworking applications

Good to know

The set conforms to DIN 2181, a German industrial standard that specifies dimensions and tolerances for center drills. Form A center drills have a straight flute without a protective chamfer, making them suitable for general-purpose centering tasks. Proper storage in the provided case helps maintain the bright finish and cutting edges.