Route, clean, and prep cracks in concrete and asphalt for caulk or sealant with the OX Ultimate Crack Chaser. The V-shaped diamond segments widen and clean failed cracks in one pass so your repair material can bond properly — no more scraping, brushing, or chipping by hand. Runs on a standard 4.5-inch angle grinder with a 7/8" (22 mm) or 5/8" (15 mm) arbor.

Why Pros Reach for the OX Ultimate Crack Chaser

• V-segment diamond profile — cleans and widens a uniform groove in one pass
• Preps concrete and asphalt cracks for caulk, polyurethane sealant, or epoxy fill
• Removes dirt, debris, and weak concrete from the crack walls so sealant bonds
• 4.5-inch (114 mm) diameter for use with standard angle grinders
• Dual-bore design: 7/8" (22 mm) and 5/8" (15 mm) arbor via knockout reducer
• 12.7 mm (1/2 in) segment height for repeated re-sharpening over the blade life
• Backed by OX’s 90-day hassle-free warranty

Specifications

• Model number: OX-UCCB-4.5
• Blade type: V-segment crack chaser
• Blade diameter: 4.5 in (114 mm)
• Segment height: 1/2 in (12.7 mm)
• Arbor: 7/8" (22 mm) with 5/8" (15 mm) knockout reducer
• Target materials: concrete, asphalt, masonry, brick
• Best for: angle grinders, hardscape contractors, concrete repair, expansion joint cleaning
• Approximate weight: 1 lb
• Warranty: 90-day hassle-free

Safety

Run only on equipment rated for 4.5" blades. Match the blade’s arbor to your grinder before mounting. Wear ANSI-rated eye protection, hearing protection, and respiratory protection when cutting silica-bearing materials — concrete dust contains crystalline silica. Use HEPA-filtered dust extraction or wet methods where possible.

Stop by Garoppo’s to pick one up, or schedule local delivery within our service area.