Addision Drill Bits

The HSS Drill Bit – Addition Sizes are specially designed for accurate drilling in metal, wood, and plastic applications where exact intermediate sizes are required. Manufactured from high-quality High-Speed Steel (HSS), these drill bits provide excellent hardness, heat resistance, and long-lasting cutting performance.

Engineered with precision-ground cutting edges and spiral flutes, they ensure smooth drilling, efficient chip removal, and reduced vibration. These addition sizes are ideal for fabrication work, machine assembly, automotive applications, and industrial maintenance where standard sizes may not provide the required accuracy.

Available Sizes and Codes

Drill Bit Addition 2.0 mm – KC 190    Length - 2 inch
Drill Bit Addition 2.5 mm – KC 191    Length - 2 inch
Drill Bit Addition 3 mm – KC 260    Length - 3 inch
Drill Bit Addition 3.4 mm – KC 155    Length - 3 inch
Drill Bit Addition 4 mm – KC 156    Length - 3 inch
Drill Bit Addition 4.3 mm – KC 157    Length - 3 inch
Drill Bit Addition 5 mm – KC 158    Length - 3 inch
Drill Bit Addition 5.2 mm – KC 159    Length - 3 inch
Drill Bit Addition 6.4 mm – KC 160    Length - 4 inch
Drill Bit Addition 6.9 mm – KC 161    Length - 4 inch
Drill Bit Addition 8 mm – KC 162    Length - 5 inch
Drill Bit Addition 8.7 mm – KC 163    Length - 5 inch
Drill Bit Addition 10 mm – KC 164    Length - 5 inch
Drill Bit Addition 10.8 mm – KC 165    Length - 6 inch

These precision sizes are particularly useful for tapping preparation, bolt fitting, clearance holes, and specialized mechanical work.

Durable, accurate, and reliable, these HSS drill bits are essential for workshops, fabrication units, engineering applications, and professional site use.