Drill Bit Set GEKO G40092 — cylindrical bits 3,4,5,6,7,8,9,10 mm

GEKO G40092 cylindrical drill bit set includes eight metric bits in sizes 3, 4, 5, 6, 7, 8, 9 and 10 mm. The bits are made for general drilling tasks and fit standard drill chucks, offering a compact selection that covers common through-hole and pilot-hole diameters. The set is suitable for workshop, construction and DIY use where consistent, repeatable hole sizes are required.

Advantages

The cylindrical shank design ensures compatibility with a wide range of standard chucks and minimizes slippage during use. A complete range from 3 mm to 10 mm provides flexibility for different hole diameters without changing tool types. The bits are organized as a set to simplify storage and size selection, reducing time spent searching for the correct diameter. Materials and geometry are matched to general-purpose drilling tasks, providing predictable cutting performance in compatible materials.

Suitable for

• Drilling pilot holes in wood and soft plastics
• Creating through-holes in metal sheets of moderate thickness
• General workshop and maintenance tasks
• Construction site jobs requiring common metric diameters
• DIY projects where a range of sizes is needed

Key specifications

• Bit sizes: 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm
• Shank type: cylindrical (straight) shank compatible with standard chucks
• Intended use: general-purpose drilling for through-holes and pilot holes
• Set quantity: 8 drill bits covering metric sizes from 3 to 10 mm

How to use

Select the drill bit size that matches the required hole diameter and secure it in the drill's chuck, tightening according to the drill manufacturer's instructions. Hold the workpiece firmly or clamp it to prevent movement. Use appropriate drill speed and feed for the material being drilled; start at a lower speed for harder materials and increase as needed. Apply steady pressure, withdraw occasionally to clear chips, and finish the hole with consistent feed until the desired depth is reached. After use, clean the bits of debris before storing them in the set to maintain performance.

Usage recommendations

Use cutting fluid or lubricant when drilling metals to reduce heat and wear; for wood and plastics, a steady, moderate speed usually provides clean holes. Always wear appropriate personal protective equipment such as eye protection and gloves, and secure the workpiece. Match drill speed and feed to the material and bit size to prolong tool life and maintain hole quality.