PROFESSIONAL step drill bit with spiral flute 4-12mm PRO.76901

Ø of single steps - 4-5-6-7-8-9-10-11-12

L - 80mm

Ø shank - 6mm

HSS-Co 5%

• Perfect for sheet metal working, stainless steel sheets, non-ferrous metals, plastics and plexiglass
• Multi-step drill bit with spiral flute and edge breaker for drilling and deburring cylindrical holes
• 3-surface grinding on the shank for a better form fit, ensuring an optimum power transmission
• Sharp drill bit tip: Instant drilling without pre-drilling, burr and chatter mark free work
• Precision ground due to CBN grinding process
• High running smoothness with an excellent cutting performance
• Optimal chip removal, especially with non-breaking chips
• Spiral geometry of the flutes results in a longer tool life
• The next larger step can be used for slight countersinking or deburring

Bulk buying