Kraft Tool Bronze Concrete Groover CF319 6 by 6 Inch 3 by 4 Inch Bit 3 by 8 Inch Radius Wood Handle (One Piece Cast Cement Masonry Tool)

Kraft Tool CF318 6-Inch x 6-Inch Bronze Hand Groover with 3/4-Inch Deep Bit and Wood Handle

The Kraft Tool CF319 6-Inch x 6-Inch Bronze Hand Groover is a single-piece cast masonry finishing tool engineered from 100% solid bronze alloy to cut expansion joints in freshly poured concrete slabs. Featuring a 3/4-inch deep by 5/8-inch wide closed-end bit with 3/8-inch radius edges, this concrete jointing tool utilizes a hand-polished base plate and a contoured hardwood handle to form uniform stress-relief control joints without gouging wet cement or catching on aggregate.

Best Used For:

• Concrete Slab Control Joint Cutting: Forming 3/4-inch deep expansion and stress-relief joints across poured driveways, sidewalks, and commercial slabs to control cracking.
• Pervious Concrete & Heavy Aggregate Flatwork: Packing down coarse aggregates along joint lines on dense, highly abrasive concrete mixes where steel tools wear down prematurely.
• Sidewalk & Patio Perimeter Finishing: Gliding over wet cement along forms with turned-up edges to produce smooth, chip-resistant 3/8-inch radius joint margins.

Key Performance & Safety Features

• 100% Solid Cast Bronze Body: Heavy single-piece bronze casting provides maximum abrasion resistance against harsh concrete aggregates without welds or rivets.
• 3/4-Inch Deep Crack Control Bit: Cuts a precise 3/4-inch deep by 5/8-inch wide groove into fresh concrete slabs to establish predictable expansion break lines.
• 3/8-Inch Radius Edge Profile: Beveled bit edges form smooth 3/8-inch rounded borders to protect control joints from chipping and spalling under foot traffic.
• Closed-End Bit Design: Sealed channel ends prevent wet concrete slurry and loose aggregate from accumulating inside the bit during finishing passes.
• Anti-Gouge Beveled Edges: Turned-up blade edges allow the groover to glide smoothly forward and backward across wet cement without digging into the surface.
• Hand-Polished Bronze Face: Polished working surface minimizes drag against wet paste, providing clean, professional joint edges with minimal cleanup.

What's Included

• (1) Kraft Tool CF319 6" x 6" Bronze Concrete Hand Groover with Wood Handle

Technical Specifications

Pro-Tip: Use a straight edge chalk line or wooden guide board across the slab when cutting control joints to ensure long expansion grooves remain perfectly straight.