- SPIRAL FLUTE - High-speed HSS 4341 spiral flute step drill.
- SWARF CLEARANCE - Spiral flutes for efficient swarf clearance.
- PRECISION - Allows clog-free precision drilling of ten different size holes between 4-30mm with just one bit.
- SIZES - Ø4-30mm in 2mm increments.
- STORAGE - Supplied in plastic storage case.