Forstner Bits
The Forstner bit is a helpful wood drill for large holes. Unlike the twist drill, a Forstner bit has a short tip and no drill thread. With the aid of the centring point, the drill can be easily fixed in place when attaching.
The Forstner bit is used in woodworking mainly for making blind holes. For example, a knothole can be drilled precisely. Therefore, the Forstner bit is also colloquially called a knothole drill bit. Holes for top hinges in furniture are also made with that wood drill.
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Guide bush I-Ø 16 mm single
for drills with AØ: 42 - 48 mm
Shipping time 3-8 business days
Bormax Prima (Pilot Guided) Forstner bit Ø40mm
Incl. pilot drill and center point | AØ: 40 mm | SØ: 10 mm | NL: 57 mm | GL: 90 mm
In stock, delivery in 1-2 business days
Countersink Bormax® 2.0 WS fine, long
AØ:- 85 mm | SØ: 13 mm | IØ:- 10 mm | NL: 110 mm | GL:- 160- mm
Delivery time 2 business days
FISCH Tools Wave Cutter, 6-piece cassette
Wave-shaped perimeter edge for clean, tear-free cuts | For blind holes, edge borings and angled borings in soft- and hardwood | Ø 20, 25, 30, 35, 40, 50 mm
In stock, delivery in 1-2 business days
Bormax® Forstner bits long
AØ: 19 mm | SØ: 13 mm | NL: 80 mm | GL: 130 mm | long
In stock, delivery in 1-2 business days
Forstner bits HM Bormax
AØ: 25 mm | SØ: 10 mm | NL: 57 mm | GL: 90 mm
In stock, delivery in 1-2 business days
Countersink Bormax® 2.0 WS fine, long
AØ:- 90 mm | SØ: 16 mm | IØ:- 10 mm | NL: 110 mm | GL:- 160- mm
Delivery time 2 business days
Bormax®, the rapid Forstner bit
AØ: 19 mm | SØ: 8 mm | NL: 57 mm | GL: 90 mm
Available from 22.09.2026
Piloted counterbore
AØ: 10 mm | SØ: 10 mm | NL: 50 mm | GL: 75 mm | for Countersink Ø: 45-120 mm
Delivery time 2 business days
Bormax Prima Pre-Drill Ø 4mm
AØ: 4 mm | SØ: 4 mm | NL: 22 mm | GL: 40 mm
In stock, delivery in 1-2 business days
Countersink Bormax® 2.0 WS fine, long
AØ:- 95 mm | SØ: 16 mm | IØ:- 10 mm | NL: 110 mm | GL:- 160- mm
Shipping time 3-8 business days
Bormax Prima 5 Piece Forstner bit set
5 piece set in wooden case | Drill bit Ø: 15, 20, 25, 30, 35 mm
In stock, delivery in 1-2 business days
Bormax® Forstner bits long
AØ: 20 mm | SØ: 13 mm | NL: 80 mm | GL: 130 mm | long
In stock, delivery in 1-2 business days
Forstner bits HM Bormax
AØ: 26 mm | SØ: 10 mm | NL: 57 mm | GL: 90 mm
In stock, delivery in 1-2 business days
Countersink Bormax® 2.0 WS fine, long
AØ:- 100 mm | SØ: 16 mm | IØ:- 10 mm | NL: 110 mm | GL:- 160- mm
In stock, delivery in 1-2 business days
Bormax®, the rapid Forstner bit
AØ: 20 mm | SØ: 8 mm | NL: 57 mm | GL: 90 mm
Available from 22.09.2026
Piloted counterbore
AØ: 12 mm | SØ: 10 mm | NL: 50 mm | GL: 75 mm | for Countersink Ø: 45-120 mm
In stock, delivery in 1-2 business days
FISCH-Tools Wave Cutter, 5-piece cassette with wave-shaped cutting edges
Includes extension for greater drilling depths | Wave-shaped cutting edges prevent overheating of the blades | Ø 35, 40, 50, 60, 68 mm + extension
Available from 29.09.2026
Forstner bits HM Bormax
AØ: 28 mm | SØ: 10 mm | NL: 57 mm | GL: 90 mm
In stock, delivery in 1-2 business days
Bormax®, the rapid Forstner bit
AØ: 21 mm | SØ: 8 mm | NL: 57 mm | GL: 90 mm
In stock, delivery in 1-2 business days
Piloted counterbore
AØ: 14 mm | SØ: 10 mm | NL: 50 mm | GL: 75 mm | for Countersink Ø: 45-120 mm
In stock, delivery in 1-2 business days
Countersink Bormax® 2.0 WS fine, long
AØ:- 110 mm | SØ: 16 mm | IØ:- 10 mm | NL: 110 mm | GL:- 160- mm
Shipping time 3-8 business days
Bormax Prima 6 Piece Forstner bit set
5 bit set incl. extension 125 mm in wooden case | Ø 15, 20, 25, 30, 35 mm incl. extension 125 mm
In stock, delivery in 1-2 business days
Forstner bits HM Bormax
AØ: 30 mm | SØ: 10 mm | NL: 57 mm | GL: 90 mm
In stock, delivery in 1-2 business days
Forstner bits from Famag
We offer a selection of excellent Forstner bits from Famag in premium quality. Among them you will find the Bormax Forstner bits. These drills are characterized by a low heat development and thus have a long service life with the highest drilling quality. Solid wood and chipboard can be chipped very quickly at lower feed rates than with conventional drills.
Pre-drilling is important
To avoid having to force the centering pin through the wood, pre-drilling should be carried out. Make sure that the correct diameter is used. It is helpful to use the tip of the Forstner bit as a guide.
FAQ - frequently asked questions about Forstner Bits
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.
Forstner bits belong to the category- wood drills and are therefore suitable for wood and wood-based materials.
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.
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.
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.
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.