Diablo DMAPLA4400-S6 Sds-plus Hammer Drill Bit 5-pack

Product Description

The DIABLO DMAPLA4400-S6 is a 1/4-inch diameter, 9-inch overall length SDS-Plus hammer drill bit engineered for drilling clean, precise holes in both plain and reinforced concrete. The full carbide head uses a 4-cutter tungsten carbide design that takes controlled bites through rebar, reducing vibration and delivering up to 7 times longer service life compared to standard bits. Dura-Carbide construction withstands heat up to 1800 degrees F, well above the 800 degrees F threshold where conventional bits typically fail. Each bit includes a steel sleeve for integration with a compatible dust extraction adapter, removing up to 97 percent of concrete dust and debris during drilling. Sold as a 5-pack.

This bit is built for licensed concrete and masonry tradespeople working on anchor-setting applications in reinforced concrete slabs, walls, and overhead structures. The 4-inch working length and 1/4-inch diameter suit standard epoxy and mechanical anchor installations. The integrated dust extraction capability makes it well-suited for interior environments where airborne silica dust exposure is a compliance concern. Epoxy or anchor placement can proceed immediately after drilling without a separate blow-brush-blow cleaning cycle, cutting hole preparation time significantly.

Key Features

• 4-cutter full tungsten carbide head drills through rebar with controlled carbide wear and reduced vibration
• Dura-Carbide material rated to 1800 degrees F for high-heat hammer drill applications
• Tri-Metal Fusion Welding bonds the carbide head to resist breakage under extreme impact
• Steel sleeve compatible with Snap-Lock Adapter (sold separately) for a two-step dust extraction system removing up to 97 percent of dust and debris
• Precision 90-degree pyramid tip provides accurate bit placement and fast starts in hard concrete
• Visible wear mark confirms drilling diameter integrity throughout the bit life
• Eliminates the blow-brush-blow cleaning step, enabling immediate anchor or epoxy placement

Compatibility

Designed for use with SDS-Plus rotary hammer drills. Dust extraction capability requires the Snap-Lock Adapter, sold separately. Suitable for anchor-setting applications in reinforced and plain concrete.

Installation Notes

Installation should be performed by qualified concrete or masonry tradespeople familiar with SDS-Plus tooling and anchor-setting procedures. Disconnect power to the rotary hammer before inserting or removing bits. Follow applicable OSHA silica dust exposure guidelines and use engineering controls, including the dust extraction adapter, when drilling in enclosed spaces. Verify anchor manufacturer specifications for hole diameter and depth tolerances before beginning work.

Technical Specifications

• Diameter: 1/4 inches
• Overall Length: 9 inches
• Working Length: 4 inches
• Shank Type: SDS-Plus
• Head Type: Full Carbide Head
• Number of Cutters: 4
• Pack Quantity: 5

Standard Information

• Brand: DIABLO
• Manufacturer Part Number: DMAPLA4400-S6