Drill bit GEKO G38500 step drill 4–32 mm HSS for sheet metal and plastics

Step drill bit GEKO G38500 4–32 mm HSS is a multi-step drilling tool with diameters from 4 to 32 mm in 2 mm increments. Designed for drilling non-ferrous metals, steel sheets and plastics, this bit is made of HSS high-speed steel and coated with titanium nitride (TiN) to improve hardness and wear resistance.

Advantages

The TiN coating increases cutting speed, reduces friction and wear, and extends tool life. The stepped design enables drilling multiple hole sizes with a single tool, improving efficiency and reducing tool changes. HSS construction provides toughness required for sheet metal and plastic applications.

Suitable for

• Drilling holes in non-ferrous metals (aluminium, copper, brass)
• Cutting through steel sheets and thin plate
• Working with plastics and composite panels
• Applications requiring multiple hole diameters without tool change

Key specifications

• Brand: GEKO
• Model / MPN: G38500
• EAN: 5901477114038
• Type: Step drill bit
• Material: HSS (high-speed steel)
• Coating: TiN (titanium nitride)
• Diameter range: 4–32 mm (steps every 2 mm)

How to use

Secure the step drill bit in the drill chuck and set the appropriate speed for the material being drilled (moderate speeds for metals, higher speeds for plastics). Mark the hole center and start drilling with steady pressure, allowing the bit to cut through each step until the desired diameter is reached. Use cutting fluid when drilling metals to improve cooling and extend bit life. After drilling, clear chips and inspect the hole for burrs.

Usage recommendations

For prolonged service life, avoid excessive feed force and excessive rotational speed; use appropriate cutting lubricant when working with steel or harder alloys and clean the bit after use to remove built-up debris.