Drill Bit Set GEKO G38573 stepless 3pcs 3–30 mm in metal case

GEKO G38573 is a set of three stepless drill bits providing a continuous working range from 3 to 30 mm, supplied in a compact metal case. Designed to offer variable hole diameters without frequent tool changes, the set is compatible with standard drill chucks and intended for use in materials suited to this type of cutting tool. The metal case secures the bits for transport and storage, keeping them organized and protected.

Advantages

The stepless design allows precise adjustment of hole diameter within the 3–30 mm range, eliminating the need for multiple fixed-size bits. The three-piece set covers a wide span of sizes for flexible on-site use. A durable metal case provides reliable protection and easy handling. The bits are suitable for rapid adaptation to varying drilling requirements and reduce downtime caused by tool changes.

Suitable for

• Drilling variable-diameter holes in soft to medium-hard materials (where stepless bits are appropriate)
• Workshop and on-site repair work requiring quick size adjustment
• Electric hand drills and drill presses with compatible chucks
• Projects where storage protection and portability are important

Key specifications

• Stepless adjustable working diameter range: 3–30 mm
• Quantity in set: 3 drill bits
• Storage: metal case for transport and protection
• Compatibility: designed for use with standard drill chucks of compatible capacity

How to use

Install the stepless drill bit into the drill chuck and tighten according to the drill manufacturer's guidance. Adjust the cutting diameter by setting the bit to the required size following the manufacturer's adjustment method for stepless bits, then secure the adjustment before drilling. Use appropriate rotational speed and feed pressure for the material being drilled. Maintain steady alignment and allow the bit to cut without excessive side force to prolong life and ensure accurate holes.

Usage recommendations

Use cutting lubricant or coolant when drilling harder materials to reduce heat and wear. Inspect the bit and chuck before each use and follow safety precautions for power tools, including eye protection and secure workpiece clamping.