+86-0577-62298888

Half Round Flute 4 Cutter Cross Head Hammer Drill Bit

Home / Products / Carbide Tipped Masonry Drill Bits / Half Round Flute 4 Cutter Cross Head Hammer Drill Bit
  • Half Round Flute 4 Cutter Cross Head Hammer Drill Bit
  • Half Round Flute 4 Cutter Cross Head Hammer Drill Bit

Half Round Flute 4 Cutter Cross Head Hammer Drill Bit

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.

Click Query
Product
Description

What is a Half Round Flute 4 Cutter Cross Head Hammer Drill Bit?

A Half Round Flute 4 Cutter Cross Head Hammer Drill Bit is a precision-engineered tool designed for efficient drilling in hard construction materials such as concrete, brick, and stone. This type of bit combines two advanced design features: the half round flute and a 4-cutter cross head tip.

The half round flute is designed to channel dust and debris out of the hole efficiently. Its curved, open profile allows for quick dust evacuation, reducing heat buildup and maintaining drilling speed, especially in deep or vertical applications.

At the cutting end, the 4-cutter cross head features four symmetrically positioned carbide blades. These cutting edges engage the material at multiple points, minimizing vibrations and helping to create clean, round holes. The cross-style design enhances both durability and impact distribution during hammer drilling, making the bit well-suited for use in rotary hammer drills in construction environments.

Product
parameter
Part No. Size(mm) Part No. Size(mm) Part No. Size(mm)
AP09-001 6x110               AP09-038 10×800 AP09-075* 15x160
AP09-002 6x160 AP09-039               10x100 AP09-076*               15x2.10
AP09-003                         6x210               AP09-040*               11x160                      AP09-077*               15×260
AP09-004           6x260 AP09-041*          11x210 AP09-078*          15x3.10
AP09-005           6x350           AP09-042*          11x260           AP09-079*          15x3.50
AP09-006          6.5x110 AP09-043*          11x310 AP09-080           15x460
AP09-007         6.5x160          AP09-044*           11x350           AP09-08            16x160
AP09-008           6.5x210 AP09-045*          11x460 AP09-082           16x210
AP09-009           6.5x260          AP09-046*          11x600           AP09-083           16×260
AP09-010*           7x110 AP09-047*          12x110 AP09-084                16x3.10
AP09-011            7x160 AP09-048           12x160           AP09-085           16x350
AP09-012*          7x210 AP09-049                12x210 AP09-086*               16x400
AP09-013           7x260 AP09-050           12×260          AP09-087           16x460
AP09-014           8x110 AP09-051           12x310 AP09-088           16×600
AP09-015           8x160 AP09-052            12x350 AP09-089*      16x800
AP09-016           8x210 AP09-053*          12x400 AP09-090           16×1000
AP09-017            8x260 AP09-054            12x460 AP09-091*          17×210
AP09-018           8x310 AP09-055           12x600 AP09-092*          17×260
AP09-019           8x350 AP09-056*          12×800          AP09-093*          17x310
AP09-020*          8x400 AP09-057           12x1000 AP09-094*          17x350
AP09-021           8x460 AP09-058*          13x160 AP09-095*          17x460
AP09-022*          9x110 AP09-059*          13x210 AP09-096           18x210
AP09-023           9x160           AP09-060            13x260          AP09-097           18x260
AP09-024           9x210 AP09-061*          13x310 AP09-098           18x310
AP09-025                9x260               AP09-062*               13x350                     AP09-099                18x350
AP09-026                9x310 AP09-063*          13x460 AP09-100*          18x400
AP09-027                9x350                       AP09-064*               13x600                     AP09-101                18x460
AP09-028           9x460 AP09-065           14x160 AP09-102           18x600
AP09-029                10×110              AP09-066                14x210                     AP09-103*               18×800
AP09-030               10×160 AP09-067               14x260 AP09-104              18×1000
AP09-031               10x210              AP09-068               14x310              AP09-105*              19x2.10
AP09-032               10x260 AP09-069               14x350 AP09-106*              19×260
AP09-033               10x310 AP09-070               14x400              AP09-107*              19x3.10
AP09-034              10x350 AP09-071               14x460 AP09-108*             19x350
             AP09-072               14x600       
AP09-036             10x460 AP09-073               14x800 AP09-110           20×210
AP09-037                10x600                      AP09-074               14x1000                     AP09-111               20×260

Why Choose a 4 Cutter Cross Head Design for Concrete Drilling?
When drilling into concrete or other tough materials, stability, accuracy, and tool longevity are essential. The 4-cutter cross head design offers clear advantages over traditional 2-blade or single-point bits.

This geometry allows the bit to strike the surface at four points simultaneously. As a result, impact energy is spread more evenly across the cutting surface, which reduces the chance of tip breakage and prevents the bit from drifting off-center when starting the hole. This is especially useful in reinforced concrete, where hitting embedded steel can often damage or deflect standard bits.

Additionally, the cross head provides more cutting contact with each hammer rotation, enabling faster penetration and smoother walls. This ensures a better fit for anchor systems and post-installed fasteners, where accurate hole dimensions are critical.

For projects where precision and endurance are required, this multi-edge design significantly increases the bit’s performance and reliability.

Applications of Half Round Flute 4 Cutter Hammer Drill Bits
The Half Round Flute 4 Cutter Hammer Drill Bit is built for a wide range of construction, installation, and renovation scenarios where dense and abrasive materials are common.

Some of the most common applications include:

      Anchor Installation: Drilling precise holes in concrete or brick walls for expansion bolts, rebar dowels, or chemical anchors.

      Electrical and Plumbing Channels: Creating paths for conduit and piping systems in concrete floors or walls.

      HVAC Mounting: Fastening air conditioning units, ducts, and support brackets onto hard surfaces.

      Overhead and Vertical Drilling: The combination of clean dust removal and steady cutting action ensures stable performance when drilling into ceilings or deep wall sections.

      Reinforced Concrete Work: The robust cross head helps penetrate occasional rebar intersections without chipping or deviation.

These bits are frequently used in structural engineering, infrastructure projects, commercial fit-outs, and any construction scenario where clean, accurate, and stable holes are required.

Engineered by Fangda Holding Co., Ltd
The Half Round Flute 4 Cutter Cross Head Hammer Drill Bit is manufactured with high-performance standards by Fangda Holding Co., Ltd, a factory focused on precision tooling for professional drilling solutions. Through advanced production methods and strict quality control, Fangda ensures that each drill bit meets the demands of today's construction environments.

Company Profile
Founded in 1987, Fangda Holding Co., Ltd specializes in the production and operation of more than 20 series and 5000 specifications of products such as drill bits, chisels, twist drills, saw blades, hole saw, woodworking tools, cemented carbide etc., It also invests in the fields of real estate, finance and PE. Now the company has more than 200 sales departments and special distribution offices across the country, as well as special distribution offices in Russia, Ukraine, the United Arab Emirates, Vietnam and other countries. Our products are exported to more than 80 countries and regions in Europe, the Americas, the Middle East, Southeast Asia, Africa. The company's export volume ranks among the top ten in the city and the top fifty in the manufacturing industry, and we are also an advanced enterprise in the hardware tools industry of Yueqing City and the drill bit (construction) industry base of China.
BLOG
Message Feedback