RUKO KES-FormD-60°-31.5mm Countersink HSS DIN 335 C

This RUKO countersink stands out with its 60° Form D geometry and 31.5 mm cutting diameter, a combination suited for creating precise chamfers and deburring holes in a single pass. Unlike standard 90° countersinks, the 60° angle is ideal for preparing holes for flat-head screws with a 60° included angle, ensuring a flush fit in metalworking and assembly tasks.

Highlights

• Three cutting edges for smooth, chatter-free countersinking
• High-speed steel (HSS) construction with bright finish for durability
• Straight shank with 12 mm diameter fits standard drill chucks
• Right-hand cutting direction for conventional drilling machines
• Conforms to DIN 335 Form C for reliable interchangeability

In daily use

The KES-FormD-60°-31.5mm is a practical tool for deburring, chamfering, and countersinking in steel, cast iron, non-ferrous metals, plastics, and wood. Its ground cutting edges deliver clean results, while the 71 mm overall length provides good reach. Whether you are preparing holes for fasteners or removing sharp edges, this countersink offers consistent performance in workshop and production environments.

Full specifications

• Tool type: Countersink
• Material: High-speed steel (HSS)
• Standard: DIN 335 C
• Form: D
• Angle: 60°
• Cutting diameter (D1): 31.5 mm
• Shank diameter (D2): 12 mm
• Overall length (L1): 71 mm
• Number of cutting edges: 3
• Shank type: Straight shank
• Cutting direction: Right-hand cut
• Surface finish: Bright (uncoated)
• Application: Deburring, chamfering, countersinking
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics, wood
• Manufacturing process: Ground
• Packaging unit: 1 piece

Final note

With its precise 60° angle and robust HSS build, this RUKO countersink is a dependable choice for professionals who need clean, accurate countersinks in a variety of materials.