Drill bit for metal Tvardy HSS DIN1869 long 5.0 x 245 mm

Long HSS metal drill bit Tvardy 5.0 x 245 mm manufactured to DIN1869. This high-speed steel straight-shank drill bit is intended for drilling steel, cast iron, non-ferrous metals and other similar materials where a longer reach is necessary. Its length provides access to recessed or deep holes while the HSS material ensures wear resistance and improved heat tolerance during continuous drilling operations. The drill bit fits standard three-jaw chucks on bench and hand-held drills and is dimensioned for stable cutting and chip evacuation in general metalworking tasks.

Advantages

The Tvardy HSS long drill bit combines extended reach with the hardness and thermal stability of high-speed steel, reducing frequent tool changes. Manufactured to DIN1869, it delivers consistent geometry for repeatable drilling accuracy. The straight shank enables secure clamping in common drills and provides torque transmission without specialized adapters. Its length and effective flute design facilitate chip removal from deeper holes, lowering the risk of jamming during use.

Suitable for

• Drilling through mild and hardened steels where extended depth is required
• Fabrication and maintenance tasks on frames, housings and assemblies with recessed holes
• Work on castings, sheet metal assemblies and non-ferrous parts requiring deep hole access
• Use in bench drills and portable drills with appropriate chuck capacity

Key specifications

• Material: High-speed steel (HSS)
• Diameter: 5.0 mm
• Total length: 245 mm
• Shank type: Straight shank suitable for three-jaw chucks
• Standard: DIN 1869 geometry and tolerances
• Intended application: Metal drilling (steel, cast iron, non-ferrous metals)

How to use

Select a suitable drilling speed and feed for the workpiece material and secure the drill bit in the chuck ensuring correct alignment. For metal drilling, apply cutting fluid to reduce heat and improve chip evacuation. Begin drilling at a controlled speed to establish the pilot, then increase feed as appropriate; use peck drilling or intermittent withdrawal for deep holes to clear chips and avoid clogging. After use, clean chips from the flutes and protect the bit from corrosion with a light oil.

Usage recommendations

Use the Tvardy HSS long drill bit in drills with adequate chuck capacity and torque. For best results on harder steels, reduce speed and use cutting fluid; for deep or blind holes, employ pecking to prevent chip buildup. Inspect the bit regularly for wear or chipping and replace when cutting performance decreases.