Exact 8004 Step Drill Bit Set 4-12/4-20/4-30 mm HSS

• Made in Germany
• Laser scale of hole diameter + speed indications
• Cross-point

Exact Step Drill Bit Set 4-12/4-20/4-30 mm High-Speed Steel Application: for burr-free drilling and removing sheet metals, pipes and profiles. Drilling range: 4-30 mm. Step height: 8 mm. Total length: 105 mm. Shaft diameter: 6.35 mm drill steps: 4-12 / 4-20 / 6-301/4 inch shaft. Exact step drill bits allow drilling with different diameter levels in different materials of up to 4.0 mm material thickness. The material thickness is determined by the step height.