Yellow twin finger bit – Granite, Engineered Stone – Nicolai

Nicolai –  Segmented finger bit for Granite, Engineered Stone (Yellow twin )

The Yellow Twin finger bit is the best seller finger bit for granite cutting and well known to many marble-workers all over the world.

This type of finger bit is made with Soft Binder (bond) FB3 that is ideal for cutting hard materials like granite and engineered stone.

The fitting is 1/2″ Gas fitting, diameter 23 mm and it’s made of 6 sectors. It’s a finger bit for fast cutting (up to 500mm/min) and with a long life.

For an homogeneous worn of the tool it’s suggested to cut the slab in a single pass. It’s also suggested to have an “arch approach” as shown in the video below.

In the case of inner cuts you need to make a suitable hole with a segmented core bit in order to use the hole as entry point for the finger bit.

Example of an “arch approach” programmed by Alphacam 2017:

The finger bit is available in 3 different “useful height” models:

• AFS94012: finger bit with useful height 30 mm
• AFS91070: finger bit with useful height 40 mm (Best Selling!)
• AFS91075: finger bit with useful height 50 mm

Suggested Parameters are:

• Rpm: 4500-5200
• Feed: 250-500 mm/min

This finger bit for CNC Machine is the Best Selling tool because it guarantees fast cutting and a long life at an affordable price.