SUTTON 4-12MM, 4-20MM, 4-30MM HSS SPIRAL STEP DRILL SET - 3 PIECE

For use in sheet metal, aluminium, plastic & fibre glass, ideal for sheet metal without pre-drilling. During drilling, the next step deburrs the previously drilled hole.

• Fixed Drilling Steps: Spiral Flute for reduced vibration and greater control through steps
• Made from HSS: Constructed from M2 high speed steel offering the best combination of strength, heat & wear resistance
• Flat Shank: Three flats suits 3-jaw chuck