RUKO HSS drill bits, pack of 10, self-centering, Ø 5.5 mm, extra short and ground.

The Ruko-251055 drill bit is a pack of 10 extra-short HSS (High-Speed Steel) face drill bits, designed to deliver exceptional performance in assembly work on thin-walled materials. Shorter than the DIN 1897 standard, these bits are ideal for drilling sheet metal, flat iron, and metal profiles. Their robust construction ensures high resistance to breakage, making them a reliable tool for use in hand drills.

The drill bits feature a tapered point with a split point, conforming to DIN 1412 C, which provides excellent centering and requires minimal pressure during use. With a cutting angle of 118° and a diameter tolerance of h8, these bits offer precise and efficient cutting.

• Material: HSS (High-Speed Steel)
• Length: Extra short, shorter than DIN 1897
• Cutting Angle: 118°
• Diameter Tolerance: h8
• Surface: Bright
• Cutting: Right-hand
• Applications: Steel, gray cast iron, malleable cast iron, ductile iron, aluminum alloys, bronze, and brass
• Tensile Strength: Up to 900 N/mm²
• Case: Translucent plastic with blue background label
• Use: Hand drills