Core Drill Bit

Trusted Metal Cutting Tool Supplier Worldwide

SENMINE — China Top Custom Diamond Drill Bit Manufacturer

Senmine, as a globally recognized metal cutting tool supplier, has long provided professional product customization and supply services to numerous well-known brand owners, wholesalers, and engineering clients. Our hollow core drill bits cover dry, wet, and universal types, widely applicable to drilling concrete, brick, stone, and other materials. We support multiple customization options, including drill pipe size, bit shape, welding method, interface type, product color, and branding (OEM/ODM), fully meeting diverse market and application needs.

Wet Core Drill Bit

Senmine wet core drill bits work with water supply to reduce heat and dust, suitable for reinforced concrete, stone, and ceramic tiles. Compatible with bench-mounted or handheld core drilling machines for stable and precise drilling.
Dry Core Drill Bit

Senmine dry core drill bits are ideal for drilling without water, widely used for hollow concrete blocks, red bricks, and lightweight bricks. Compatible with angle grinders, handheld drills, and rotary hammers (with adapters) for flexible and efficient operation.
Dry & Wet Core Drill Bit

Senmine dry & wet core drill bits allow flexible switching between dry and wet drilling, suitable for concrete, masonry, and stone, balancing mobility and durability.

PRODUCT MIX

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Product Selling Points

Lifetime

Made with premium diamond segments and high-quality carbon steel tubes, precision-welded and rigorously tested to ensure even wear, low chipping, and a lifespan far exceeding similar products.

Drilling speed

Optimized segment formula combined with precisely engineered cutting angles greatly improves penetration speed, reduces cutting resistance, and enables rapid drilling to significantly shorten project time.

Cooling efficiency

Rational tube structure and debris-flute design effectively lower temperature during drilling, prevent segment burn-out, and extend tool life.

Strictly select raw materials

Drill tubes made from high-strength carbon steel; segments use a high-concentration blend of premium diamonds and metal bond—optimized through multiple formula trials to balance sharpness with wear resistance.

Procedure

Utilizing laser welding and high-frequency welding, precisely matched to product applications to ensure a strong bond between the segments and tube, preventing detachment and delivering reliable performance in demanding construction environments.

Customizable and comprehensive

Supports customization of tube length, diameter, segment shape, welding method, connection type, outer color, and OEM/ODM logo branding to meet individual client requirements.

Precision Sizing & Dynamic Balancing

Strict control of tube dimensional tolerances combined with dynamic balance testing ensures high-speed stability, reduces run-out and vibration, and improves drilling accuracy.

Wide Application Range

Available in wet, dry, and universal models—covering scenarios from home renovation to large-scale engineering projects, compatible with multiple equipment interfaces.

Tailor-made style

a length : 150-1000mm
b aperture : ф12-500mm
c thickness : 1.8-5.0mm

Support customization for both seamless and welded pipe bodies

XM-01-CROWN

Good life, Fast Drilling
Reinforced concrete, Concrete

XM-02-V SHAPE

Good life, Fast Drilling
Reinforced concrete, Concrete

XM-03-ROOF

Good life, Roof segments allowan easier cut
Reinforced concrete, Concrete

XM-04-TURBO

Good life, Long lasting
Reinforced concrete, Concrete

XM-05-DOTTED

Very fast cutting;
Reinforced concrete, Concrete

XM-06-X+ROOF

Extrem fast drilling, Roof
tips allow an easier cut
Reinforced concrete, Concrete

a Aperture: ф12-500mm b Length: 19-23mm
c Width: 3.7-4.5mm d Height: 9-12mm

Welding Technology

Senmine utilizes laser welding or high-frequency welding processes based on different working conditions and customer requirements.This achieves a high-strength bond between the drill bit and drill pipe, with strong and durable weld seams, ensuring stable performance in demanding construction environments

Drill Pipe

The drill pipe is designed with either a welded (laser or high-frequency welded) or seamless structure.Welded pipes offer sturdy construction suitable for most conventional applications, while seamless pipes are ideal for scenarios requiring higher strength and corrosion resistance. Customers can customize according to their specific needs.

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Senmine · Drilling Through the World

Senmine specializes in manufacturing metal cutting and drilling tools, serving global brand owners, wholesalers, and engineering contractors. We offer OEM / ODM customization for core drill bits, saw blades, and more, with flexible options for sizes, structures, welding techniques, and packaging to meet diverse market and application needs. With advanced production equipment, strict quality control, and efficient delivery capabilities, Senmine is committed to providing reliable, high-performance product solutions.

PROCESS EQUIPMENT

Equipment raw materials

Utilizing high-precision CNC machinery for accurate cutting of tubes and segments, with strict dimensional tolerance control to ensure uniform cuts, effectively enhancing product balance and durability while minimizing performance fluctuations.
Quality inspection system

Rigorous quality inspection process covering raw material incoming inspection, in-process monitoring, finished product dimensional accuracy checks, weld strength testing, and wear resistance verification, ensuring every product meets high standards for customer safety and reliability.
High production capacity

Equipped with multiple advanced automated production lines and ample capacity to efficiently handle large-volume orders, ensuring stable production cycles and timely delivery.

Product Quality and Testing Report

Inspection Report

OEM INFO

New Product

Assist customers in developing new products, supporting customization based on drawings, samples, or concept designs to meet diverse needs.

Packaging

Various packaging options including anti-rust cartons, plastic cases, and custom wooden boxes, supporting laser engraving, silk-screen, and labeling for logo customization to enhance brand identity.

Order

Flexible minimum order quantities, accommodating small trial runs to large-scale production; special offers and custom plans available for distributors and brand owners.

Model

Fast prototyping service to shorten product validation cycles, typically completing samples within 3-7 days to accelerate customer projects.

Professional Team

Dedicated account managers provide professional liaison and full follow-up on customization and production progress, ensuring timely and smooth communication.

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Factory Advantages

Complete Facilities

Self-owned factory equipped with complete processing, welding, grinding, and assembly workshops to ensure efficient and controllable production throughout.

Rich Export Experience

Over 20 years of extensive export experience, familiar with international market requirements and standards to guarantee product quality and compliance.