Drill bit FANAR HSS cylindrical 4.2 mm for metal, model W2-101811-0420

FANAR HSS cylindrical drill bit 4.2 mm is engineered for drilling metal where a precise, clean hole of 4.2 mm diameter is required. Manufactured from high-speed steel (HSS), this drill bit offers wear resistance and stable cutting performance when working with ferrous and non-ferrous metals. The cylindrical shank design fits standard chucks and holders used in hand-held drills and drill presses, making it suitable for workshop and maintenance environments that demand consistent hole quality.

Advantages

The high-speed steel composition ensures a balance of hardness and toughness for prolonged cutting life and resistance to wear at typical drilling speeds. The 4.2 mm diameter provides accurate hole sizing for common fastening and assembly tasks. A cylindrical shank offers compatibility with a wide range of drill chucks and holders, ensuring secure clamping and reduced runout. The geometry of the cutting edges is optimized for metal cutting to reduce burr formation and improve hole finish.

Suitable for

• Drilling holes in steel and cast iron components
• Creating accurate holes in non-ferrous metals such as aluminium, brass, and copper
• Workshop maintenance and repair tasks requiring 4.2 mm holes
• Preparing pilot holes for fastening and assembly operations

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Cylindrical shank compatible with standard chucks
• Diameter: 4.2 mm
• Intended material: Ferrous and non-ferrous metals
• Typical applications: Metal drilling, maintenance, assembly preparation

How to use

Secure the FANAR HSS 4.2 mm drill bit into an appropriate chuck, ensuring it is clamped straight to minimize runout. Select a drill speed suitable for the workpiece material—lower speeds for hard steels, higher speeds for softer non-ferrous metals—and apply steady feed pressure. For thicker or harder metals, use cutting fluid or coolant to reduce heat buildup and extend tool life. After drilling, clean chips away from the flutes and inspect the hole for required dimensional accuracy and finish.

Usage recommendations

Use appropriate personal protective equipment, including eye protection and gloves. Match drill speed and feed to the specific material being machined, and apply cutting fluid when drilling harder or thicker metal to improve tool life and hole quality. Regularly inspect the bit for wear and replace when signs of dulling or chipping affect performance.