Drill bit GEKO conical HSS TiN 4–20 mm (pack options 25/100/200) G38505

GEKO conical HSS TiN drill bit, diameter range 4–20 mm, designed to create stepped or conical holes in metals and a range of other materials. Manufactured from high-speed steel (HSS) and finished with a titanium nitride (TiN) coating, this conical bit delivers improved wear resistance and prolonged tool life compared with uncoated tools. Available in pack sizes of 25, 100, or 200 pieces to suit individual workshops, production runs and maintenance teams that require multiple identical cutting tools.

Advantages

The HSS substrate provides toughness and heat resistance for reliable cutting, while the TiN coating reduces friction and increases surface hardness to slow wear on the cutting edges. The conical stepped shape allows drilling of multiple diameters with a single tool, reducing tool changes and setup time. Packs in larger quantities support repetitive work and lower unit costs for industrial or workshop environments.

Suitable for

• Drilling stepped or tapered holes in mild and alloy steels
• Sheet metal, thin-walled components and pipe ends
• General maintenance and repair work in workshops and production lines
• Prototyping and small series production where variable hole sizes are required

Key specifications

• Material: high-speed steel (HSS)
• Coating: titanium nitride (TiN)
• Diameter range: 4–20 mm (conical stepped profile)
• Available pack sizes: 25, 100, 200 pieces
• Intended use: drilling metals and various other machinable materials

How to use

Install the conical HSS TiN bit in a suitable drill or drill press chuck that accepts the shank size. Secure the workpiece and select an appropriate rotational speed—use lower speeds for harder materials and higher speeds for softer metals. Apply steady axial pressure and let the bit cut without excessive force; withdraw periodically to clear chips and reduce heat buildup. Use cutting fluid or coolant when drilling harder metals to extend tool life and improve surface finish.

Usage recommendations

For consistent results, match feed rate and speed to the material being drilled, keep the bit sharp and replace when edge wear impairs cutting. Store packs in a dry place to prevent corrosion and handle with care to avoid chipping the cutting edges. When working with hardened steels or abrasive materials, consider using purpose-ground or carbide tools instead of HSS conical bits.