FANAR HSS cylindrical drill bit 4.3 mm, model W2-103811-0430

FANAR HSS cylindrical drill bit 4.3 mm, model W2-103811-0430 is a high-speed steel (HSS) drill designed for general metalworking and multipurpose drilling applications. With a 4.3 mm cutting diameter and a cylindrical shank, this drill bit is intended for use in handheld drills and drill presses to produce precise round holes in ferrous and non-ferrous materials where HSS tooling is suitable.

Advantages

The HSS material provides good wear resistance and reliable cutting performance across a variety of metals, offering a balance between toughness and hardness. The cylindrical shank allows secure clamping in standard chucks, and the 4.3 mm diameter delivers a consistent hole size for repeatable results. The geometry of the cutting edges supports efficient chip evacuation and steady drill tracking when used at appropriate speeds and feeds.

Suitable for

• Drilling holes in mild steel and stainless steel within HSS capability
• Working with non-ferrous metals such as aluminum, brass, and copper
• General maintenance and repair tasks using handheld drills or drill presses
• Prototype and workshop tasks requiring precise small-diameter holes

Key specifications

• Cutting diameter: 4.3 mm
• Material: high-speed steel (HSS)
• Shank type: cylindrical shank compatible with standard chucks
• Primary use: metal drilling and general-purpose holemaking

How to use

Mount the FANAR HSS 4.3 mm drill bit securely in the chuck of a handheld drill or drill press, ensuring proper alignment and clamping. Select cutting speed and feed appropriate for the workpiece material—lower speeds for harder steels, higher speeds for softer non-ferrous metals. Use suitable cutting fluid when drilling ferrous metals to reduce heat buildup and prolong tool life. Apply steady, even pressure and allow the drill to cut without excessive force; retract occasionally to clear chips in deeper holes.

Usage recommendations

For best results, pre-center holes with an appropriate center punch for accurate positioning. When drilling stainless steel or other hard alloys, reduce rotational speed and use lubricant to minimize tempering and work hardening. Inspect the drill bit regularly for signs of wear or damage and replace when cutting performance declines.