Diablo DMAPLA4470 Sds-plus Hammer Drill Bit 9/16in Rebar

Product Description

The DIABLO DMAPLA4470 is a 9/16-inch SDS-Plus hammer drill bit engineered for drilling clean, precise holes in reinforced concrete. The 4-cutter full carbide head is constructed with Dura-Carbide rated to withstand heat up to 1800 degrees F, compared to 800 degrees F for standard bits. Tri-Metal Fusion Welding bonds the carbide head to the shank for high-impact resistance and breakage prevention. A built-in removable stainless-steel sleeve enables a two-step dust extraction process that removes up to 97 percent of dust and debris. Installed by concrete anchoring crews, masonry tradespeople, and commercial construction teams working under OSHA silica dust exposure regulations.

The DMAPLA4470 is designed for hammer drilling into reinforced and clean concrete, particularly for anchor-setting applications where epoxy or mechanical anchors require clean, debris-free holes. The dust extraction capability eliminates the traditional blow-brush-blow hole preparation method, reducing hole prep time by up to 3X and delivering up to 66 percent labor savings. It is suited for interior, overhead, and exterior drilling scenarios where airborne silica dust control is a job-site requirement or regulatory concern.

Key Features

• 4-cutter full carbide head takes controlled small bites through rebar, reducing vibration and extending bit life up to 7X over standard bits
• Dura-Carbide material rated to 1800 degrees F heat resistance, more than double the threshold of standard carbide bits
• Tri-Metal Fusion Welding joins the carbide head for breakage resistance under high-impact hammer drill stress
• Removable stainless-steel sleeve integrates with Snap-Lock Adapter (sold separately) for two-step full dust extraction, capturing up to 97 percent of dust and debris
• Precision Tip geometry — 90-degree pyramid shape — delivers starting stability and accuracy in reinforced concrete
• Visible wear mark confirms drilling diameter accuracy throughout the bit life

Compatibility

Designed for use with SDS-Plus rotary hammer drills. Dust extraction function requires the Snap-Lock Adapter, sold separately. Compatible with reinforced and clean concrete anchor-setting applications.

Installation Notes

Installation should be performed by qualified masonry or concrete trades familiar with SDS-Plus tooling and OSHA silica dust exposure regulations (29 CFR 1926.1153). Confirm the hammer drill is powered off and the bit is fully seated in the SDS-Plus chuck before operation. When using the dust extraction sleeve, connect the vacuum system before drilling to maintain effective debris capture. Do not use this bit with rotary-only drill mode — hammer mode is required for proper carbide head engagement.

Technical Specifications

• Diameter: 9/16 inches
• Overall Length: 10 inches
• Working Length: 4 inches
• Shank Type: SDS-Plus
• Head Type: Full Carbide Head
• Number of Cutters: 4
• Pack Quantity: 1

Standard Information

• Brand: DIABLO
• Manufacturer Part Number: DMAPLA4470