XPRESS Core Drill Bits for Quartzite, Granite

Wet or dry

Professional Core Drill Bits for Fast Drilling in Quartzite and Granite

Quartzite and granite require core drill bits capable of maintaining drilling efficiency in hard and dense stone materials.

XPRESS Core Drill Bits for Quartzite and Granite are designed for wet or dry drilling applications and feature patterned diamond segments for faster drilling performance in quartzite.

The design combines DIATOP’s softest metal bond with turbo segments, small segment notches, and coarse diamonds to support fast drilling performance.

They are suitable for stone fabrication and hole-drilling applications using drills and hand grinders.

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

Key Features

• Patterned diamond segments deliver faster drilling in quartzite.
• Features the softest metal bond we offer.
• Turbo segments for fast drilling speed.
• Small notches in the segments allow quicker drilling.
• DIATOP original design.
• Coarse diamonds for fast drilling performance.

Available Sizes

Item – Diameter (inch / mm) / Thickness mm / Segment Height mm

• XQC 25 – 1 inch / 25 mm / 3 mm / 7 mm
• XQC 28 – 1 1/8 inch / 28 mm / 3 mm / 7 mm
• XQC 32 – 1 1/4 inch / 32 mm / 3 mm / 7 mm
• XQC 35 – 1 3/8 inch / 35 mm / 3 mm / 7 mm
• XQC 38 – 1 1/2 inch / 38 mm / 3 mm / 7 mm
• XQC 40 – 1 5/8 inch / 40 mm / 3 mm / 7 mm
• XQC 45 – 1 3/4 inch / 45 mm / 3 mm / 7 mm
• XQC 50 – 2 inch / 50 mm / 3.3 mm / 7 mm
• XQC 64 – 2 1/2 inch / 64 mm / 3.3 mm / 7 mm
• XQC 75 – 3 inch / 75 mm / 3.3 mm / 7 mm

* Thread: 5/8"-11, M14

Typical Applications

quartzite drilling, granite drilling, stone drilling, core drilling, hole drilling, wet stone drilling, dry stone drilling, countertop fabrication drilling, quartzite countertop drilling, granite countertop drilling, stone fabrication drilling, hand grinder drilling

Q1. What core drill bit is recommended for drilling quartzite and granite?

A. The XPRESS Core Drill Bit for Quartzite and Granite is designed for wet or dry drilling in hard stone materials. It uses patterned diamond segments, DIATOP’s softest metal bond, turbo segments, and coarse diamonds for fast drilling performance.

Q2. Can the XPRESS Core Drill Bit be used for both wet and dry drilling?

A. Yes. The XPRESS Core Drill Bit for Quartzite and Granite is designed for both wet and dry drilling applications. It is suitable for quartzite, granite, and other stone-drilling applications using drills or hand grinders.

Q3. What features help the XPRESS Core Drill Bit drill quartzite faster?

A. The XPRESS Core Drill Bit uses patterned diamond segments, turbo segments, small segment notches, coarse diamonds, and DIATOP’s softest metal bond. These features are designed to support faster drilling performance in quartzite.

For core drill bit selection guidelines, wet and dry drilling recommendations, operating parameters, and troubleshooting guidance, please visit the DIATOP Tech Notes section.