Rapido Finger Bits

Wet / For granite / CNC sink cut-out / Soft bond / 5 segments

Professional Wet Finger Bit for Granite CNC Bowl Cut-Outs

Granite countertop fabrication requires a finger bit capable of cutting sink and bowl openings accurately while maintaining stable performance on CNC machines.

DIATOP RAPIDO Finger Bit is designed for cutting out bowls on granite tops using CNC machines.

The bit features water distribution holes, a soft bond, and five segments. It uses a 1/2" gas thread.

Type of Equipment: D (Drill Press / CNC Drilling Equipment)

Key Features

• Designed for cutting out bowls on granite tops by CNC machine.

• Water distribution holes.

• Soft bond.

• 5 segments.

• 1/2" gas thread.

• Wet cutting.

Available Sizes

Item – Diameter inch / Diameter mm / Segment Length mm

• RFB 2035 – 3/4 inch / 20 mm / 35 mm

• RFB 2040 – 3/4 inch / 20 mm / 40 mm

• RFB 2050 – 3/4 inch / 20 mm / 50 mm

• RFB 2340 – 7/8 inch / 23 mm / 40 mm

• RFB 2350 – 7/8 inch / 23 mm / 50 mm

• RFB 2540 – 1 inch / 25 mm / 40 mm

• RFB 2550 – 1 inch / 25 mm / 50 mm

Operation Parameters

• RPM: 4500–6500

• Feed: 250–500 mm/min (10–20 inches/min)

Technical Notes

• Wet cutting

• Bond: Soft

• No. of Segments: 5

• Thread: 1/2" gas

• Water distribution holes

• Suitable material: Granite

• Machine application: CNC machine

Typical Applications

granite sink cut-out, granite bowl cut-out, CNC granite cutting, countertop sink opening, granite countertop fabrication, CNC finger bit cutting, wet granite cutting, stone fabrication, vanity fabrication

Q1. What finger bit is recommended for CNC sink and bowl cut-outs in granite?

A. DIATOP RAPIDO Finger Bit is designed for cutting out bowls on granite tops by CNC machine. It uses a soft bond, five segments, and water distribution holes.

Q2. What thread and operating speed are specified for RAPIDO Finger Bit?

A. The catalog specifies a 1/2" gas thread and an operating speed of 4500–6500 RPM.

Q3. What feed rate is recommended for RAPIDO Finger Bit?

A. The recommended feed rate is 250–500 mm/min, equivalent to approximately 10–20 inches/min.

For finger bit selection guidelines, CNC operating parameters, feed rates, thread compatibility, and troubleshooting guidance, please visit the DIATOP Tech Notes section.