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Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 1

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 2

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 3

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 4

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 5

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 6

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits 7

Johnson Tools Laser Welded Diamond Core Bits for Concrete Granite Block Wall Marble Stones 68mm Brick Hole Saw Drill Core Bits

Specification:

Diameter: 68mm or 82mm,

Thread:5/8-11 Thread or M16 Thread,

Drill bit total length: 100mm,

Diamond Height: 10mm.

(Please pay attention to the 5/8-11 Thread, usually used in the North American market)

Install electrical wall boxes with speed and safety using the Johnson Tools 68mm Laser Welded Dry Core Bit. Engineered specifically for electricians and HVAC professionals, this "Dry Core" bit features Laser Welded Segments that withstand the extreme heat of dry drilling in Concrete, Hard Brick, Masonry Blocks, and Natural Stone without segment loss. The standard 68mm diameter is precision-sized for flush-mounted switch and socket boxes.

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PRODUCT ADVANTAGES

Our customer service team is a dedicated, hard-working group specially selected for their enthusiasm and commitment to providing excellent customer service. They offer advice, answer any queries.

Utilizes advanced laser welding technology to securely fix diamond particles onto its surface, ensuring exceptional durability and performance.

Superior heat dissipation properties effectively reduce wear and tear, extending the drill bit's lifespan.

Features quick installation and compatibility with various drilling equipment models, providing unmatched convenience.

It serves as an efficient concrete drill bit, brick wall drill bit, concrete core drill bit, and drill bit for concrete walls.

PRODUCT parameter

Out Diameter:	68mm, 72mm, 82mm
Working Length:	70mm
Connection:	5/8-11 Thread or M16 Thread
Application:	Concrete and Reinforced Concrete

product usage

applications：

The Laser Welded Diamond Core Drill Bit is a versatile drilling tool designed for precision drilling in hard materials such as concrete, bricks, plasterboard, tiles, and stone.
An ideal choice for professionals in construction, engineering, and mining industries, offering reliable drilling solutions for various applications.

Noteworthy Features:

The included centering drill facilitates precise positioning of the core drill, simplifying drilling tasks.
Compatibility with SDS-Plus or Hex adapter allows easy fitting to drills or hammer drills, enhancing versatility and convenience.
Functions effectively as a concrete drill bit, drill bit for brick walls, concrete core drill bit, and drill bit for concrete walls, catering to various drilling needs.

Q1: What is a 68mm core bit used for?

A: The 68mm size is the specific standard for installing Electrical Socket Boxes and switch outlets in masonry and block walls. It creates a perfect fit for the box to sit flush.

Q2: Can I use this bit Dry?

A: Yes. This is a Laser Welded bit, specifically designed for Dry Drilling. The laser weld holds the segments securely even under high heat, which would melt a standard silver-brazed bit.

Q3: What adapter do I need?

A: The bit typically comes with an M16 female thread. You will need an adapter to fit your machine, such as: SDS-Plus Adapter: For rotary hammer drills (use in rotary mode only!). Hex Adapter: For standard jaw chuck drills. M14 Adapter: For angle grinders.

Q4: Should I use "Hammer Mode" on my drill?

A: NO. Always use Rotary Mode Only. Using hammer/impact mode will damage the diamond segments and can crack the core bit. The diamonds grind the material; they do not need impact force.

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Produces and exports diamond tools for the stone processing and construction industries to countries around the world.

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Factory Address

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Sales dept. Address

No.11009, Building 8, K-Land Manhattan Square, No.5 Weihua Road, SIP, Suzhou, Jiangsu, China 21500