Drill bit DeWalt DT9579 for rotary hammer, Ø 16 mm, length 200 mm, 1 pc

DeWalt DT9579 is a 16 mm diameter drill bit engineered for use with rotary hammers. At 200 mm overall length and supplied as a single piece, this drill bit is intended for drilling medium-diameter holes in concrete and masonry. The design includes a robust shank profile compatible with SDS-style or rotary-hammer chucks and a carbide tip geometry that maintains cutting performance and wear resistance on abrasive substrates.

Advantages

This drill bit offers consistent performance when used in hammer-drilling applications thanks to its carbide tip and optimized flute geometry that remove dust effectively. The 16 mm diameter and 200 mm length provide a balance between reach and rigidity for stable drilling in structural materials. Its one-piece construction minimizes play between tip and shank, improving accuracy and service life under typical construction and renovation loads.

Suitable for

• Drilling medium-diameter holes in concrete and masonry for anchors and dowels
• Installation of electrical boxes, conduit paths and plumbing penetrations
• General construction and renovation tasks requiring durable percussion drilling

Key specifications

• Drill diameter: 16 mm
• Overall length: 200 mm
• Intended tool type: rotary hammer / hammer drill with compatible chuck
• Tip material: carbide cutting tip
• Shank design: shank compatible with SDS-style/rotary-hammer chucks
• Application materials: concrete and masonry

How to use

Secure the drill bit in the rotary hammer chuck according to the tool manufacturer's instructions, ensuring the shank is fully engaged. Select the hammer-drill mode and an appropriate rotational speed for concrete or masonry. Start drilling with light pressure to establish the hole, then maintain steady, moderate pressure while allowing the hammer action to do the cutting. Periodically withdraw the bit to clear debris and prevent clogging of the flutes. Use appropriate personal protective equipment, including eye, ear and respiratory protection.

Usage recommendations

For longer service life and consistent hole quality, avoid applying excessive lateral force, keep the bit cool by intermittent extraction to evacuate dust, and use the bit with rotary hammers rated for the bit diameter. Choose anchor and fastener sizes that match the 16 mm hole for secure fixing in concrete and masonry.