Nice Core Drill Bits 

Wet / High-tech brazing / For granite countertops and vanities

Professional Wet Core Drill Bits for Granite Countertops and Vanities

Granite drilling requires a core drill bit capable of maintaining fast drilling speed and long service life while producing clean holes in countertops and vanity applications.

DIATOP NICE CORE DRILL Bits are designed for drilling holes in granite countertops and vanities.

The range is available in both Regular Body and Side Protection versions, with multiple diameters for different fabrication requirements.

High-tech brazing is applied for durable performance, and multiple thread and barrel-length options are available.

Type of Equipment: D / D / HG (Drill Press / Power Drill / Handheld Grinder)

Key Features

• Designed for drilling holes in granite countertops and vanities.

• Fast drilling speed.

• Long service life.

• High-tech brazing.

• Regular body version available.

• Side protection version available.

• Wet drilling.

Available Sizes – Regular Body

Item – Diameter inch / Diameter mm / Thickness mm / Height mm / No. of Segments

• SKS-020 – 3/4 inch / 20 mm / 3.0 mm / 7 mm / 4

• SKS-025 – 1 inch / 25 mm / 3.0 mm / 7 mm / 4

• SKS-028 – 1 1/8 inch / 28 mm / 3.0 mm / 7 mm / 4

• SKS-032 – 1 1/4 inch / 32 mm / 3.0 mm / 7 mm / 5

• SKS-035 – 1 3/8 inch / 35 mm / 3.0 mm / 7 mm / 5

• SKS-038 – 1 1/2 inch / 38 mm / 3.0 mm / 7 mm / 5

• SKS-040 – 1 5/8 inch / 40 mm / 3.0 mm / 7 mm / 5

• SKS-045 – 1 3/4 inch / 45 mm / 3.0 mm / 7 mm / 5

• SKS-048 – 1 7/8 inch / 48 mm / 3.0 mm / 7 mm / 5

• SKS-050 – 2 inch / 50 mm / 3.3 mm / 7 mm / 5

• SKS-057 – 2 1/4 inch / 57 mm / 3.3 mm / 7 mm / 5

• SKS-060 – 2 3/8 inch / 60 mm / 3.3 mm / 7 mm / 5

• SKS-064 – 2 1/2 inch / 64 mm / 3.3 mm / 7 mm / 6

• SKS-070 – 2 3/4 inch / 70 mm / 3.3 mm / 7 mm / 6

• SKS-075 – 3 inch / 75 mm / 3.3 mm / 7 mm / 7

• SKS-090 – 3 1/2 inch / 90 mm / 3.3 mm / 7 mm / 8

• SKS-100 – 4 inch / 100 mm / 3.3 mm / 7 mm / 9

• SKS-125 – 5 inch / 125 mm / 3.5 mm / 7 mm / 10

• SKS-150 – 6 inch / 150 mm / 3.5 mm / 7 mm / 13

* M14, 5/8"-11 thread, 1/2" gas available.

* Barrel length of 50 mm, 60 mm and 100 mm available.

Available Sizes – Side Protection

Item – Diameter inch / Diameter mm

• SKP-020 – 3/4 inch / 20 mm

• SKP-025 – 1 inch / 25 mm

• SKP-028 – 1 1/8 inch / 28 mm

• SKP-032 – 1 1/4 inch / 32 mm

• SKP-035 – 1 3/8 inch / 35 mm

• SKP-038 – 1 1/2 inch / 38 mm

• SKP-040 – 1 5/8 inch / 40 mm

• SKP-045 – 1 3/4 inch / 45 mm

• SKP-048 – 1 7/8 inch / 48 mm

• SKP-050 – 2 inch / 50 mm

• SKP-057 – 2 1/4 inch / 57 mm

• SKP-060 – 2 3/8 inch / 60 mm

• SKP-064 – 2 1/2 inch / 64 mm

• SKP-070 – 2 3/4 inch / 70 mm

• SKP-075 – 3 inch / 75 mm

• SKP-090 – 3 1/2 inch / 90 mm

• SKP-100 – 4 inch / 100 mm

• SKP-125 – 5 inch / 125 mm

NICE CORE DRILL with Pilot Drill / Wet

Wet / Pilot drill type / For granite

Professional Wet Core Drill Bits with Pilot Drill

DIATOP NICE CORE DRILL with Pilot Drill is designed for wet drilling applications where a pilot drill is required for positioning and starting the hole.

The range is available from 1 inch to 2 inches in diameter.

Available Sizes – With Pilot Drill

Item – Diameter inch / Diameter mm / T x H mm

• SKL 25 – 1 inch / 25 mm / 3.0 x 7 mm

• SKL 30 – 1 3/16 inch / 30 mm / 3.0 x 7 mm

• SKL 35 – 1 3/8 inch / 35 mm / 3.0 x 7 mm

• SKL 40 – 1 5/8 inch / 40 mm / 3.0 x 7 mm

• SKL 50 – 2 inch / 50 mm / 3.3 x 7 mm

Technical Notes

• Wet drilling

• High-tech brazing

• Regular body version available

• Side protection version available

• Pilot drill version available

• Thread options: M14, 5/8"-11, 1/2" gas

• Barrel lengths: 50 mm, 60 mm, 100 mm

• Suitable material: Granite

Typical Applications

granite drilling, granite countertop drilling, vanity drilling, countertop hole drilling, wet core drilling, granite sink hole drilling, granite fabrication, stone fabrication, side protection core drilling, pilot drill core drilling

Q1. What wet core drill bit is recommended for granite countertops and vanities?

A. DIATOP NICE CORE DRILL Bits are designed for drilling holes in granite countertops and vanities and are specified for fast drilling speed, long life, and high-tech brazing.

Q2. What versions of NICE CORE DRILL are available?

A. The range includes Regular Body, Side Protection, and Pilot Drill versions.

Q3. What thread and barrel-length options are available?

A. The catalog lists M14, 5/8"-11, and 1/2" gas thread options. Barrel lengths of 50 mm, 60 mm, and 100 mm are available.

For core drill bit selection guidelines, thread compatibility, barrel length selection, wet drilling conditions, and troubleshooting guidance, please visit the DIATOP Tech Notes section.