Employing high-quality alloy steel for the drilling body and YG carbide alloy for the drilling tip, in combination with various types of electric hammers. The drill is an efficient tool suitably and widely used for hole drilling in hard materials like concrete/brick in the construction & installation industries.
What is W Flute 4 Cutter High Stability And Accuracy Hammer Drill Bit?
The W Flute 4 Cutter High Stability And Accuracy Hammer Drill Bit is a specialized rotary hammer bit that features two distinct design innovations: a W-shaped flute and a four-point carbide cutter head.
The W flute design is crafted to maximize dust removal efficiency. Unlike standard straight or U-shaped flutes, the W flute has angular grooves that aggressively channel debris out of the hole, keeping the drilling path clean and minimizing heat buildup. This improves drilling speed and protects the cutting edges from wear.
The 4-cutter head refers to the four symmetrically positioned cutting edges at the bit's tip. This configuration ensures a more balanced impact when drilling, delivering smoother hole entry and reducing the risk of jamming—especially in materials with embedded aggregate or rebar.
Together, these features make the bit exceptionally effective in demanding construction environments, where precision, tool life, and job site efficiency are critical.
Part No. | Size(mm) | Part No. | Size(mm) | Part No. | Size(mm) |
AM04-001* | 10×260 | AM04-035* | 20x400 | AM04-069 | 30x540 |
AM04-002 | 10x340 | AM04-036 | 20x540 | AM04-070 | 30x600 |
AM04-003 | 10x540 | AM04-037 | 20x600 | AM04-071 | 30x670 |
AM04-004 | 10x600 | AM04-038 | 20x670 | AM04-072 | 30x800 |
AM04-005 | 12x260 | AM04-039 | 20×800 | AM04-073 | 30x1000 |
AM04-006 | 12x340 | AM04-040 | 20×1000 | AM04-074* | 32x340 |
AM04-007 | 12x540 | AM04-041 | 22x260 | AM04-075 | 32x540 |
AM04-008 | 12x600 | AM04-042 | 22x340 | AM04-076 | 32x600 |
AM04-009 | 14x260 | AM04-043* | 22x400 | AM04-077 | 32x800 |
AM04-010 | 14x340 | AM04-044 | 22x505 | AM04-078 | 32x1000 |
AM04-011* | 14x400 | AM04-045 | 22x540 | AM04-079 | 35x540 |
AM04-012 | 14x540 | AM04-046 | 22x600 | AM04-080 | 35x600 |
AM04-013 | 14x600 | AM04-047 | 22x670 | AM04-081 | 35x670 |
AM04-014 | 14x670 | AM04-048 | 22x800 | AM04-082 | 35x800 |
AM04-015 | 14x1000 | AM04-049 | 22x1000 | AM04-083 | 35x1000 |
AM04-016 | 16x260 | AM04-050 | 25x260 | AM04-084* | 38x400 |
AM04-017 | 16x340 | AM04-051 | 25x340 | AM04-085 | 38x600 |
AM04-018 | 16x505 | AM04-052 | 25x400 | AM04-086 | 38x800 |
AM04-019 | 16x540 | AM04-053 | 2.5x505 | AM04-087 | 38x1000 |
AM04-020 | 16x600 | AM04-054 | 25x540 | AM04-088 | 40x540 |
AM04-021 | 16×670 | AM04-055 | 25x600 | AM04-089 | 40x600 |
AM04-022 | 16×800 | AM04-056 | 25x800 | AM04-090 | 40x670 |
AM04-023 | 16x1000 | AM04-057 | 25x1000 | AM04-091 | 40x800 |
AM04-024 | 18x260 | AM04-058 | 28x340 | AM04-092 | 40x1000 |
AM04-025 | 18x340 | AM04-059* | 28x400 | AM04-093 | 42x570 |
AM04-026* | 18x400 | AM04-060 | 28x505 | AM04-094 | 42x600 |
AM04-027 | 18x505 | AM04-061 | 28x540 | AM04-095 | 42x800 |
AM04-028 | 14x540 | AM04-062 | 28x600 | AM04-096 | 42100 |
AM04-029 | 18x600 | AM04-063 | 28x670 | AM04-097 | 45x540 |
AM04-030 | 18x670 | AM04-064 | 28x800 | AM04-098 | 45x1000 |
AM04-031 | 18×800 | AM04-065 | 28x1000 | AM04-099 | 52x540 |
AM04-032 | 18×1000 | AM04-066 | 30x340 | AM04-100 | 52x1000 |
AM04-033 | 20×260 | AM04-067* | 30x400 | ||
AM04-034 | 20x340 | AM04-068* | 30x505 |
Key Features & Advantages
W Flute Design for Fast Dust Extraction
The angular profile of the W flute promotes rapid removal of debris, preventing clogging and maintaining consistent drilling pressure. This results in cleaner holes and less downtime during operation.
4 Cutter Head for Balanced and Efficient Drilling
The four cutting edges work in unison to deliver clean, round holes with minimal deflection or vibration. This is especially useful when drilling deep holes or working on vertical surfaces.
High Stability and Low Vibration
Thanks to the combination of symmetrical cutting geometry and efficient flute design, this bit offers exceptional drilling stability. Users experience less tool chatter, improved precision, and more comfortable handling over extended periods.
Durable Carbide Tips for Extended Lifespan
The cutting tips are reinforced with high-durability carbide, ensuring long-term performance even in hard, abrasive materials. This translates to fewer bit changes and lower operating costs.
Optimized for Rotary Hammer Drills
Compatible with all standard rotary hammer drill systems, this bit is ideal for professionals needing high torque, impact resistance, and control in their daily operations.
Common Applications
The W Flute 4 Cutter Hammer Drill Bit is suitable for a broad range of construction and renovation applications, including:
Drilling into concrete slabs and walls for mechanical fasteners or rebar anchors
Masonry work in brick, block, or natural stone installations
Creating deep holes in reinforced materials without wandering or jamming
Electrical and plumbing conduit drilling with improved precision
Heavy-duty drilling in commercial and industrial construction projects
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