Ronix 3pcs Spiral Step Drill Bit Set 4-12mm/4-20mm/4-32mm RH-5903

For fast, accurate drilling into hard materials like stainless steel, copper, or aluminum without the hassle of changing bits, the Ronix RH-5903 3-piece spiral step drill bit set is the perfect choice. These bits feature a 2-flute design for quicker material removal and cleaner, more precise holes. Made of high-speed steel with a durable titanium coating, they offer long-lasting performance. The 3-flat shank prevents slipping in the chuck, while the new speed point tip ensures smooth, efficient drilling.

Key Features

Detailed Description – Ronix Ronix RH-5903 is an ideal choice for those looking for spiral bits that are worth the money. Let’s see why:

Body – The bits in Ronix RH-5903 set are made of high-speed steel (HSS M2), which is durable and strong, making them perfect for drilling through tough materials. They are also titanium coated to add even more durability and ensure a long life. The set comes with a 3-flat shank, which helps prevent slipping in the drill chuck that ensure a secure and firm grip while drilling. With a strong metal body, the bits in RH-5903 set are reliable and highly resistant to wear and tear.

Flute Design – The bits in RH-5903 set have a spiral flute design with 2 flutes, which allows for faster drilling by efficiently removing material and keeping the operation smooth. This design is particularly useful for drilling into materials like steel, stainless steel, copper, and aluminum sheets.

Size Range and Maximum Material Thickness – Each drill bit in this set has a step design, meaning you can drill holes of different diameters using only one single bit. This reduces the need to constantly change bits and saves a lot of time and energy. The 4-12mm bit is 65mm in length, the 4-20mm bit is 74 mm and the 4-32mm model is 102mm. No matter the size of the holes you want to make, using this set, you can drill through materials up to 4mm thick.

Point Angle – These spiral step bits come with a New Speed Point tip that enables faster penetration and prevents the bit from moving off the target. This means you can start drilling more easily and accurately. The bits have a 120° cutting angle that is sharp enough to penetrate materials quickly and efficiently.

Packaging – Ronix RH-5903 set comes in an iron box.

Features

• Step design enables multiple-diameter drilling with only one bit
• Step drill bit with 2-flute design for drilling in steel, stainless steel, copper, aluminum sheets
• Made of high-speed steel and titanium coated for more durability and long life
• 3-flat shank prevents slipping in drill chuck
• Various drill ：4-12mm;4-20mm;4-32mm
• New Speed Point tip for fast penetrate and prevent drill bit walking
• Includes 3-piece spiral drill with metal body