Precise step drilling with Facom
- Twelve sizes in one: You drill clean holes from 6 to 38 mm across multiple materials without switching bits.
- No pilot hole required: The self-centering split point lets you start drilling immediately without wandering or pre-drilling.
- Secure three-flat shank: The 10 mm cylindrical shank with 3 flats prevents slipping and micro-locking in your drill chuck.
With the Facom 229A.ST3 step drill bit, you drill and enlarge clean holes from 6 mm up to 38 mm in sheet metal, enclosures, and thin profiles without swapping bits. Thanks to the self-centering split point with cross grinding, the bit bites directly into the material, eliminating the need for center punching or pilot drilling. The twelve steps deburr hole edges as you advance, preventing snagging and deformation of your workpiece. a 10 mm cylindrical shank with 3 flats secures a non-slip grip in your drill chuck, while laser markings inside the flute make it easy to monitor your diameter progression.
Product description
- Tapped drills
- For cylindrical and precise drilling in all materials.
- No pre-drilling required.
- Cross-grinding: self-centring.
- More powerful cutting edge: user needs to apply less force, no burrs.
- HSS steel
- Better drainage of drill chips.
- Less vibration, quieter.
- Cylindrical shank with 3 bumping edges, for good drive preventing micro-blocking.
- Laser marking of the different diameters in a groove.
- 678006: Especially for ISO threads.
- 678014: Especially for PG threads.