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40Cr Sandblasted SDS Drill Bit 12mm R Flute Sds Hammer Drill

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40Cr Sandblasted SDS Drill Bit 12mm R Flute Sds Hammer Drill

Shank : SDS MAX

Flute : u Flute / L Flute / R Flute/High Helix

Size : 12

Material : Tungsten Carbide

Finish : sandblasted

Tip material : YG8C

Name : SDS MAX hammer drill bits

Body material : 40Cr

Use : Stone, Concrete / heavy masonry work

Brand Name : XRTOOLS

Model Number : 12X350

Certification : ISO9000

Place of Origin : CHINA

MOQ : 100pcs

Price : $0.28-20/pc

Payment Terms : L/C, T/T, , Western Union

Supply Ability : 50000pcs/per day

Delivery Time : 25-30days

Packaging Details : PVC bag;Plastic tube,Blister Card,Plastic Hook

Process : Milled Flutes and Auto-Welded Tip

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Professional SDS Max Drill Bit: The Industrial Power-Drive Series

1. Product Concept: "The Rebar-Eater"

Designed for the most demanding 10-joule+ rotary hammers, our Professional SDS Max Series is the definitive solution for large-scale infrastructure. While standard bits fail under the intense thermal stress of reinforced concrete, our Power-Drive technology ensures consistent penetration through the densest substrates.

Whether you are anchoring structural steel in Europe, drilling through frozen masonry in Russia, or navigating high-density basalt in the Middle East, these bits are engineered for zero-compromise performance.

40Cr Sandblasted SDS Drill Bit 12mm R Flute Sds Hammer Drill

2. Technical Specifications Table (Standard & XL Range)

Our SDS Max range (18mm shank) is manufactured to ultra-tight tolerances to ensure a 100% circular hole, meeting the strict safety requirements for heavy-duty mechanical and chemical anchoring.

Diameter (D) Total Length (L1) Flute Length (L2) Cutter Configuration Primary Application
12.0 mm 340 mm 200 mm Single / 4-Cutter Structural Rebar Anchoring
16.0 mm 540 mm 400 mm 4-Cutter Cross Tip HVAC & Conduit Access
20.0 mm 540 / 920 mm 400 / 800 mm 4-Cutter Cross Tip Heavy Machinery Bases
25.0 mm 540 / 920 mm 400 / 800 mm Multi-Cutter Head Infrastructure Reinforcement
32.0 mm 600 / 920 mm 460 / 800 mm Multi-Cutter Head Industrial Pipe Mainlines
40.0 mm 600 / 920 mm 460 / 800 mm TIP2 Industrial Head Through-Wall Demolition
52.0 mm 600 / 1000 mm 460 / 850 mm TIP2 Industrial Head Large-Scale Core Access

3. Engineering Superiority: Why Professionals Choose Us

Progressive Flute Geometry (PFG)

To match the massive impact energy of SDS Max hammers, our bits feature a Progressive Helix.

  • Variable Core Thickness: The core diameter increases toward the shank, providing maximum torsional stability and preventing the bit from snapping during high-torque rebar strikes.

  • Accelerated Dust Displacement: The flute volume expands outward, creating a vacuum effect that extracts heavy debris 40% faster than standard straight-flute bits.

Vacuum-Heat-Treated 40Cr Alloy Stem

Every bit is forged from premium 40Cr alloy steel and undergoes a proprietary vacuum tempering process.

  • Elasticity vs. Rigidity: This treatment allows the bit to flex slightly under massive vibration without fracturing—essential for deep-hole drilling (up to 1000mm).

  • Fatigue Resistance: Shot-peened surface treatment creates a work-hardened layer that resists the formation of stress cracks.

High-Density YG8C Carbide with Auto-Welding

We utilize specialized YG8C grade carbide (HRC 89-91) joined to the body via a fully Automated Induction Welding process.

  • Thermal Endurance: The bond remains stable at temperatures up to 900°C, preventing tip-loss in high-friction environments.

  • Shock Absorption: Symmetrical head design ensures even distribution of impact forces, protecting the carbide from brittle fracturing.

40Cr Sandblasted SDS Drill Bit 12mm R Flute Sds Hammer Drill

4. Global Market Suitability & Logistics

  • Regional Optimization:

    • Middle East: Sand-blasted and oil-treated surface for maximum resistance to salt-air corrosion.

    • Russia & CIS: Engineered with low-temperature resilience to prevent brittleness in sub-zero site conditions.

    • Europe: Fully compliant with DIN 8039 and ISO 5468 safety standards.

  • B2B Customization (OEM): Precision Laser Etching for brand logos, metric/inch sizes, and localized technical markings directly on the shank.

  • Industrial Packaging: Heavy-duty, oil-resistant PVC tubes with reinforced caps for individual bits or custom contractor sets.

40Cr Sandblasted SDS Drill Bit 12mm R Flute Sds Hammer Drill

5. FAQ (Professional Procurement)

Q: Can these bits drill through rebar continuously?

A: Yes. Our 4-Cutter and Multi-Cutter designs are specifically engineered to slice through rebar without jamming, protecting the operator from sudden torque kickback.

Q: Will this fit my POWER TOOLS FOR THIS SDS Max hammer?

A: Absolutely. Our SDS Max shanks are precision-machined to international 18mm standards, ensuring a perfect fit with all professional high-joule rotary hammer brands.

Q: Do you support custom lengths for infrastructure projects?

A: We stock lengths up to 1000mm (1 meter). For bulk orders, we can manufacture custom lengths to meet specific project requirements.


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