RUKO carbide hollow drill bit Ø 21 mm with threaded seat and high durability.

The Ruko-108021 hollow drill bit is designed to deliver exceptional performance in industrial applications. With a diameter of 21 mm and a depth of 50 mm, this tool is ideal for drilling demanding materials such as cast iron and high-chromium alloy steel, including V2A and V4A types. Its carbide construction ensures superior durability and strength, making it a reliable choice for industry professionals.

The drill bit features an M18 x 6 P 1.5 internal thread seat, allowing its use in magnetic base pillar drills and floor drills that connect to Morse taper using specific adapters (108 102/108 103).

• Diameter: Ø 21 mm
• Drilling depth: 50 mm
• Internal thread: M18 x 6 P 1.5
• Material: Carbide
• Recommended use: Cast steel, high-chromium alloy steel (V2A and V4A)
• Compatible with magnetic base pillar drills
• Morse taper connection via 108 102/108 103 adapters
• Direct connection to Fein KBN 542/KBN 65 drills
• Available sizes: 12 to 55 mm in 1.0 mm increments
• Additional sizes available upon request: 60 - 63 - 65 - 68 - 70 - 71 - 75 - 80 mm