Drill Bit Set Makita MAXI 6-Blade SDS-Max for SDS‑MAX Hammers 38×550×690 mm

Makita MAXI 6-Blade SDS-Max drill bit set is designed for use with SDS‑MAX rotary hammers. The set includes heavy-duty bits with a working diameter of 38 mm and overall lengths of 550 mm and 690 mm, engineered for drilling and light chiselling in concrete, reinforced concrete and natural stone. SDS‑Max shank compatibility ensures secure coupling to compatible hammers and quick bit changes on site.

Advantages

The six cutting edges provide stable drilling performance and efficient material removal, reducing the need for frequent feed adjustments. Hardened cutting faces and a robust flute geometry improve chip evacuation and extend service life under demanding conditions. The SDS‑Max shank design delivers reliable retention and accurate centering in compatible rotary hammers.

Suitable for

• Drilling large-diameter holes in concrete and reinforced concrete
• Anchoring and installation of heavy fasteners and dowels
• Making guide holes for coring or rebar locating
• Light chiselling and demolition tasks where a wide bit is required

Key specifications

• Bit type: SDS‑Max, 6-blade tip geometry
• Nominal diameter: 38 mm
• Working lengths included: 550 mm and 690 mm
• Intended materials: concrete, reinforced concrete, natural stone
• Flute design: optimized for chip evacuation during heavy drilling

How to use

Select a rotary hammer with SDS‑MAX chuck compatible with the bit. Securely insert the SDS‑Max shank into the tool until it locks. Mark the drilling position, set the hammer mode for rotary or rotary‑percussion according to the task, and start drilling at low speed to establish the hole, then increase pressure steadily. Withdraw the bit periodically to clear debris and maintain cooling. For deep holes use the longer 690 mm bit; for shorter reaches use the 550 mm bit.

Usage recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and dust extraction or respiratory protection when drilling. Inspect bits before use for visible damage and avoid excessive side loading to preserve the cutting edges. For best results in reinforced concrete, combine measured feed force with frequent bit withdrawal to remove chips and prevent binding.