Boring Trepan Drill Glob HSS 20 x 30 mm, cutting length 30 mm

Trepan (crown) drill Glob HSS 20 x 30 mm with a cutting length of 30 mm is a solid high-speed steel (HSS) boring tool designed for creating clean circular holes and extracting core material. The tool’s geometry and material make it suitable for drilling through metal and other hard substrates, delivering repeatable hole dimensions when used with drill presses or compatible hand-held drills. The compact 20 mm diameter and 30 mm cutting length are matched for applications requiring moderate hole size and controlled chip removal.

Advantages

The Glob HSS trepan drill offers durable high-speed steel construction that retains hardness at elevated cutting temperatures for consistent performance. Its crown-style cutting edge enables efficient material removal and produces a smooth bore surface with minimal burr formation. The tool’s design reduces the volume of chips retained in the hole by removing a core, which decreases cutting resistance and facilitates faster penetration in demanding materials.

Suitable for

• Drilling circular holes in steel and non-ferrous metals
• Creating holes in sheet, plate, and light to medium sections
• Use on drill press for precision repeatable holes
• Use with compatible hand-held drills for on-site or maintenance work

Key specifications

• Material: High-speed steel (HSS)
• Diameter: 20 mm
• Cutting length: 30 mm
• Type: Trepan / crown drill
• Intended use: Boring and core removal for circular holes

How to use

Secure the workpiece firmly and align the trepan drill with the intended hole center. Use appropriate cutting fluid when machining metals to improve tool life and surface finish. Run the drill at recommended speeds for HSS tools and apply steady, moderate feed pressure to allow the trepan to cut and eject the core. Periodically withdraw the tool to clear chips if cutting deeper than the cutting length and to avoid clogging. Inspect the hole and tool edge for wear after use and re-sharpen or replace the trepan when cutting performance degrades.

Usage recommendations

For best results, mount the trepan on a stable drill press where possible, set spindle speed according to workpiece material, and use suitable lubrication. Match feed rate to material hardness and drill diameter to minimize heat buildup. Avoid excessive lateral forces and ensure correct clamping to maintain hole accuracy and extend tool life.