Glob GLOBTOOLS-WT20L HSS Core Drill Bit 55 mm Length

The Glob GLOBTOOLS-WT20L HSS Core Drill Bit with a length of 55 mm is a high-performance annular cutter engineered for precise and efficient metal drilling applications. Manufactured from robust high-speed steel, this core drill bit delivers reliable durability and clean hole cutting performance, making it an essential tool for professional workshops, metalworking facilities, and industrial production environments where accuracy and longevity are paramount.

Advantages

Constructed from premium high-speed steel, the Glob core drill bit maintains its cutting edge and structural integrity even under demanding operational conditions. The annular cutter design removes material only from the periphery of the hole, which significantly reduces cutting resistance, lowers power consumption, and shortens drilling times compared to conventional twist drills. This efficient cutting action results in smooth, burr-free holes with high dimensional accuracy, minimizing the need for secondary finishing operations and enhancing overall workflow productivity.

Suitable for

• Drilling precise holes in structural steel and metal sheets
• Industrial metal fabrication and workshop manufacturing
• Heavy-duty engineering and construction projects
• Professional mechanical maintenance and repair tasks

When it may not be suitable

This core drill bit is not designed for drilling non-metallic materials such as wood, plastics, concrete, or stone, as the high-speed steel geometry and material properties are specifically optimized for metals. Additionally, it requires dedicated magnetic core drilling machines or compatible heavy-duty equipment with proper arbors, and it is generally not suitable for handheld standard power drills without appropriate drill press setups.

Key specifications

• Material: High-speed steel (HSS)
• Drill type: Core drill bit / annular cutter
• Working length: 55 mm
• Application: Metal drilling

How to use

Ensure the workpiece is securely clamped and the drilling machine is powered off before mounting the Glob core drill bit into the compatible arbor or machine chuck. Align the center pilot pin with your pre-marked drilling spot to ensure precise positioning. Apply appropriate cutting fluid or lubricant continuously during the drilling process to reduce friction, dissipate heat, and prolong the service life of the cutting edges. Initiate drilling with steady, controlled pressure and avoid excessive force to maintain smooth chip evacuation and prevent tool damage.

What to consider before purchase

• Verify compatibility with your existing drilling equipment and arbor systems
• Confirm that the 55 mm cutting depth matches your specific project requirements
• Ensure appropriate cooling and lubrication methods are available for metal cutting

Usage recommendations: Always wear appropriate personal protective equipment, including safety glasses and gloves, during metal drilling operations. Regularly inspect the cutting edges for wear and clean the drill bit after use to maintain optimal performance.