Prepare concrete cracks for stronger, cleaner repairs with Tomahawk Crack Chaser Blades. Designed to open narrow cracks into a clean V-shaped channel, this blade removes weak and loose concrete edges to create a better bonding surface for epoxy, polyurethane, mortar, and other concrete repair materials.
The 3/8" cutting width makes it easy to widen and shape cracks before filling, helping repair materials penetrate and bond to solid concrete instead of loose edges. Beyond crack repair, the blade can also be used for decorative concrete scoring and clearing mortar joints, making it a versatile addition to your concrete repair setup.
Featuring a 4" diameter and non-threaded 5/8"-7/8" arbor, this crack chaser blade is built for compatible grinders and crack chasing equipment.
Features
[V-SHAPED CRACK PREP] Opens narrow concrete cracks into a clean V-shaped channel for easier filling and repair.
[BETTER ADHESION] Removes weak, loose edges to expose solid concrete for better bonding with epoxy, polyurethane, and mortar.
[3/8" WIDE CUT] Creates a wide, consistent channel for filling and sealing damaged concrete.
[MULTIPLE USES] Ideal for crack chasing, decorative concrete scoring, mortar joint cleaning, and concrete repair preparation.
[4" DIAMOND BLADE] Compact 4" blade provides controlled cutting when following straight or irregular cracks.
[NON-THREADED ARBOR] Features a 5/8"-7/8" non-threaded arbor for use with compatible grinders and crack chasing equipment.
Specifications
Blade Diameter: 4"
Blade Width: .375" (3/8")
Arbor: 5/8"-7/8"
Arbor Type: Non-Threaded
Cut Profile: V-Shaped
Package Includes
One (1) 4" V-Shaped Crack Chaser Blade
Grinder not included
Compatible with
Compatibility Disclaimer: Compatible with most standard 4" and 4-1/2" angle grinders using a 5/8"-7/8" non-threaded arbor. Always verify arbor size, guard clearance, and RPM requirements before use. Don’t see your grinder listed? Give us a call and our team will help confirm compatibility.
Bosch GWS13-50
Dewalt DWE4011
Dewalt DWE402
Makita 9557PBX1
Makita 9564CV
Metabo W 9-115
Milwaukee 6130-33
Milwaukee 6142-30
Ridgid R1006
Ridgid R86047
Ryobi PCL445B
Ryobi PBLAG01B
Craftsman CMEG100
Kobalt KAG 424B-03
Hilti AG 4S-22
Skil 9295-01
Hilti AG 450-7D
Bosch GWS8-45
Applications
CONCRETE CRACK CHASING
Turn damaged cracks into repair-ready channels. Follow narrow, random, and irregular cracks while removing weak concrete along the edges. This creates a cleaner channel with solid surfaces for repair materials to fill and bond.
EPOXY CRACK PREP
Give epoxy a cleaner surface to grab onto. Open cracks and remove loose, deteriorated concrete before applying epoxy repair materials. Exposing solid concrete helps improve adhesion and creates a better foundation for the repair.
POLYUREA & POLYURETHANE PREP
Get cracks ready for flexible fillers and sealants. Route out weak edges and widen narrow cracks before applying polyurea or polyurethane repair products. The clean V-groove provides more surface area for the repair material to contact and bond.
JOINT CLEANOUT
Clean out joints before you refill or reseal them. Use the blade to remove loose material, buildup, and debris from existing concrete joints. A cleaner joint makes it easier to apply fresh repair or sealing material where it's needed.
MORTAR JOINT CLEANING
Remove deteriorated mortar before repointing. Clear loose or failing material from masonry joints to expose a cleaner surface for fresh mortar. The compact 4" blade provides controlled access when working along brick, block, and masonry joints.
GARAGE FLOOR REPAIR
Prep cracked concrete before installing a new floor system. Chase cracks before filling, resurfacing, or applying epoxy and other garage floor coatings. Proper crack preparation helps create a cleaner foundation for the repair and the finished floor.
COMMERCIAL FLOOR REPAIR
Prepare damaged floors for professional repairs. Route cracks in warehouses, workshops, retail spaces, and other commercial concrete floors before filling or coating. The blade helps crews turn irregular cracks into clean, consistent channels ready for repair material.
SIDEWALKS & DRIVEWAYS
Get exterior cracks ready for filling and sealing. Open damaged cracks in sidewalks, driveways, patios, and other concrete surfaces while removing weak edges. The resulting groove gives patching and sealing materials a cleaner area to fill.
DECORATIVE SCORING
Add controlled lines and grooves to concrete surfaces. Use the blade for decorative scoring, borders, patterns, and other concrete detailing applications. The compact blade makes it easier to guide cuts where controlled scoring is required.
V-GROOVE CRACKS
Create a clean, consistent groove for stronger repairs. The V-shaped cutting profile opens narrow cracks and provides additional space for repair material. A properly routed groove makes it easier to fill the crack completely and achieve a professional repair.
Blog
CA Proposition 65 Warning
⚠ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
