Makita Diamond Blade Set B-69705 4-1/2 Inch (2-Pack 7/8 Arbor 13800 RPM Turbo Rim Wet Dry Concrete Brick Paver Masonry Cutting Disc Tool Unit)

Makita B-69705 4-1/2" Turbo Rim General Purpose Diamond Blades 2-Pack

The Makita B-69705 4-1/2-inch turbo rim diamond blade 2-pack cuts cured concrete, structural concrete blocks, clay bricks, interlocking patio pavers, and clay roofing tiles with high speed and reduced chipping. Engineered with 50% taller 0.51-inch (13 mm) diamond-impregnated rim segments that provide up to 4X longer service life and 30% smoother cutting finishes than traditional segmented blades, this blade maintains continuous surface contact across tough masonry substrates. Outfitted with an expertly tensioned steel core to minimize operational vibration up to 13,800 maximum RPM, multi-arbor bushings (7/8-inch, 20 mm, and 5/8-inch), and full wet or dry cutting capability, it equips commercial masons, hardscape contractors, and general builders with precise, clean-edged masonry slicing on standard angle grinders and compact cut-off saws.

Best Used For:

• Interlocking Paver and Retaining Wall Sizing: Slicing dense concrete pavers, garden wall blocks, and edging stones cleanly with minimal edge blowout.
• Brick Masonry and Mortar Joint Cutting: Executing smooth, chip-free crosscuts and decorative reveals in solid clay facing bricks and structural cinder blocks.
• Cured Concrete and Roof Tile Sectioning: Trimming cured concrete expansion pads, cement board underlayments, and terracotta or composite roof tiles.

Key Performance & Safety Features

• Continuous Turbo Rim Geometry: Serrated turbo edge maintains constant material contact to deliver up to 30% smoother cutting passes than standard segmented wheels.
• Extended 0.51-Inch (13 mm) Segment Height: Taller matrix layer packs 50% more diamond volume to provide up to 4X longer cutting life in abrasive aggregates.
• Tensioned High-Strength Steel Core: Precision-balanced steel plate reduces blade flutter and harmonic vibration for superior user comfort and accurate tracking.
• Optimum Bond Matrix Technology: Premium diamond abrasive crystals embedded in an engineered metal bond matrix ensure rapid material removal and consistent edge exposure.
• Dual Wet and Dry Operation: Provides the versatility to execute rapid dry cuts on jobsites or dust-controlled wet cutting passes with suppression systems.
• Universal Multi-Arbor Fitment: Standard 7/8-inch arbor hole includes nested reducer adapter bushings to fit 20 mm and 5/8-inch grinder spindles seamlessly.

What's Included

• (2) Makita B-69705 4-1/2" Turbo Rim General Purpose Masonry Diamond Blades
• (1) Set of Arbor Reducer Bushing Adapters (7/8" to 20 mm / 5/8")

Technical Specifications

Pro-Tip: When dry cutting hard concrete pavers or dense facing bricks, avoid applying heavy downward pressure; allow the 13,800 RPM blade speed to pull the diamond segments through the cut naturally and oscillate slightly back and forth to clear abrasive masonry dust from the kerf.