Drill Bit Art-Pol HSS 16 mm, stepped/back-relieved (AR50160)

Art-Pol HSS 16 mm stepped/back-relieved drill bit is designed for drilling precise 16 mm holes in metals. Made from high-speed steel (HSS), the bit features a stepped or back-relieved profile that reduces friction at the cutting edge and improves chip evacuation during drilling operations. The geometry and material make this drill bit suitable for use in hand drills and drill presses where accurate, clean holes in steel, cast iron and non-ferrous metals are required for fabrication, maintenance and repair tasks.

Advantages

The stepped/back-relieved profile lowers contact area behind the cutting lip, which reduces heat buildup and friction for longer cutting performance. High-speed steel construction provides edge retention and toughness under typical metalworking conditions. The stepped design improves chip control and evacuation, helping to maintain drilling speed and hole quality in a variety of metal substrates. The bit’s standard 16 mm diameter allows consistent hole sizing for assembly and fitment operations.

Suitable for

• Drilling 16 mm holes in steel and stainless steel
• Drilling in cast iron and non-ferrous metals such as aluminum and brass
• Fabrication and metalworking in workshops and production
• Maintenance, repair and installation tasks requiring precise metal holes

Key specifications

• Material: high-speed steel (HSS)
• Cutting profile: stepped / back-relieved geometry for reduced friction
• Diameter: 16 mm
• Intended use: metal drilling (steel, cast iron, non-ferrous metals)
• Compatible equipment: hand drills and drill presses

How to use

Secure the workpiece and mark the drilling point. Use an appropriate center punch to prevent walking. Fit the 16 mm HSS drill bit into the chuck and ensure it is clamped straight. Select a suitable drilling speed for the material—lower speeds for harder steels, higher speeds for softer non-ferrous metals—and apply steady, even feed pressure. Use cutting fluid or lubricant when drilling steels and cast iron to reduce heat and improve chip clearance. Clear chips regularly and retract the bit periodically on deep holes to avoid clogging.

Usage recommendations

For best results, use cutting oil with ferrous materials and moderate spindle speeds to preserve edge life. When drilling thin or soft metals, support the workpiece to avoid deformation and use backing material if necessary. Inspect the drill bit for wear or damage before use and replace when cutting performance declines to maintain hole accuracy.