Drill Bit for Metal GEKO HSS M35 4.5 mm T03045

Solid high-speed steel (HSS M35) drill bit GEKO HSS M35 4.5 mm T03045 is designed for precise drilling in metal. The 4.5 mm diameter and M35 cobalt alloy construction increase heat resistance and wear performance, making the bit suitable for use in various ferrous materials and tougher steels. It is compatible with common hand drills and drill presses used in fabrication, maintenance and metalworking environments.

Advantages

The M35 cobalt-enhanced high-speed steel provides improved durability and thermal stability compared with standard HSS, reducing the risk of rapid wear under higher temperatures. The solid bit geometry supports accurate centring and consistent hole size, while the 4.5 mm diameter offers a common size for pilot holes, fastener preparation and general metal drilling. The bit’s construction is intended to maintain cutting performance across repeated use when paired with appropriate speeds and coolant or lubrication.

Suitable for

• Drilling holes in mild and alloy steels
• Pilot holes for tapping and fastening in metalwork
• Work on metal sheets, profiles and structural components
• Use in hand drills and drill presses for repair and fabrication

Key specifications

• Material: High-speed steel with M35 cobalt alloy
• Diameter: 4.5 mm
• Intended material: Ferrous metals and steels
• Shank type: Standard straight shank (suitable for common chucks)
• Tip geometry: General-purpose twist drill profile for metal

How to use

Secure the drill bit in the chuck ensuring proper centring and firm clamping. Select an appropriate spindle speed and feed rate for the 4.5 mm diameter and the specific metal being drilled; lower speeds are recommended for harder steels. Apply cutting fluid or lubricant where possible to reduce heat and extend tool life. Use steady pressure and avoid excessive side loading. After drilling, retract periodically to clear chips when drilling deep holes.

Usage recommendations

For best results, start with a centre punch to locate the hole, use recommended cutting speeds for M35 HSS in steel, and apply coolant or lubricant. Inspect the bit for wear before reuse and replace when the tip is rounded or chipped to maintain hole quality and operator safety.