What do I use a Forstner bit for?

The Forstner bit - named after its inventor, American Benjamin Forstner - is used in woodworking mainly for making flat bottomed holes. For example, a knot hole can be drilled out exactly and precisely. That is why the Forstner bit is also colloquially called knothole drill. In addition, it can also be used to make holes for concealed hinges in furniture.

For what types of material is a Forstner bit suitable?

Forstner bits belong to the category- wood drills and are therefore suitable for wood and wood-based materials.

What must be considered when using a Forstner bit?

Forstner drills are equipped with a centring point due to the diameter of the bit. It is important to make sure that this centre point is firmly held in the workpiece when the drill is applied. This is the only way to ensure that the drill does not slip during drilling and that a clean hole is produced.

Up to what diameter are Forstner bits available?

Our assortment offers you a large selection of Fornstner bits. In our Classic range we offer bits up to Ø50 mm, Tool steel (WM) range up to Ø60 mm and in Tungsten-Carbide (HM) up to Ø60 mm.

What is the difference between a Forstner bit and a cylindrical bit?

The cylindrical drill is a variation of the Forstner bit. While the Forstner drill usually consists of a centre point, two main cutting edges and two closed circumferential cutting edges, the cylindrical drill is equipped with two open circumferential cutting edges. In general, the Forstner bit is ideal for free-hand applications and the cylindrical drill is ideal for working with a stationary device, such as a drill stand.

When should I use a Forstner bit with tool steel (WS) and when with tungsten-carbide cutting edges (HM)?

Drill bits with tungsten-carbide cutting edges generally have a longer service life and are particularly suitable for hard woods. Tthey are also ideal for wood-based materials such as MDF and chipboard.Fornstner drills made of tool steel are ideal for drilling in soft woods.

Punte Forstner

La punta Forstner è una speciale punta per legno con punta centrale. Questo assicura che la punta sia centrata con precisione durante l'utilizzo. La punta Forstner può essere utilizzata per praticare fori grandi e senza schegge e fori ciechi . A differenza della punta elicoidale, la punta Forstner ha una punta corta e non ha un filo di foratura. Vengono utilizzate nella costruzione di mobili, ad esempio per praticare i fori di montaggio per le cerniere a tazza e altri raccordi. La punta Forstner può anche essere utilizzata per eliminare facilmente e con precisione i fori di disturbo. Per questo motivo è nota anche come punta per nodi.

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