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Rectangular zinc groover blade with curved DuraSoft handle

Marshalltown Trowel

Marshalltown Trowel 834D 1/4 in radius zinc groover 6 x 4 in hand tool

SKU CH-E5F2-GCGK4 MPN 834D

Zinc groover forms 1/4 in radius control joints in fresh concrete with a DuraSoft grip handle

  • Product typeMasonry Tools
  • Main materialZinc
  • Key featuresSoft Grip Heavy Duty
  • Product weight1.85 lb (0.84 kg)
  • Number of items1 / Box
  • Creates clean 1/4 in radius grooves with zinc blade
  • Soft DuraSoft grip reduces hand fatigue during extended use
  • Lightweight 1.85 lb design allows precise control
  • 6 x 4 in blade covers more surface per pass
  • Durable zinc construction resists wear on concrete jobs

1/4 in Radius Zinc Groover

The Marshalltown 834D is a hand groover built for concrete and masonry work. Its zinc blade measures 6 in long by 4 3/8 in wide and cuts a groove 3/8 in wide and 3/4 in deep with a 1/4 in radius. A DuraSoft handle 4 1/2 in long provides a secure grip for extended use.

Replaces worn or undersized groovers

When an existing tool no longer cuts clean edges or the groove profile does not match the joint specification, this groover restores consistent results. The jump is worth it on jobs that demand a precise 1/4 in radius and 3/4 in depth for control joints or decorative lines.

Capacity and headroom

The 6 in blade handles standard control-joint spacing in sidewalks, driveways and slabs. It runs out on very wide pours where a longer blade would reduce passes, or on mixes that demand a different groove width or radius than the fixed 3/8 in by 1/4 in profile.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $24.99
Typical for this category: the median of 2,474 items is $23.99.

Specifications

Product
Brand nameMARSHALLTOWN
Model name834D
Product typeMasonry Tools
Size & build
Main materialZinc
Product weight1.85 lb (0.84 kg)
In the box
Number of items1 / Box

Questions about this item

What handle length and grip material does the 834D groover use?

The tool has a 4 1/2 in handle wrapped in DuraSoft material for a soft, heavy-duty grip.

How do you hold the 834D to cut a clean 1/4 in radius groove in fresh concrete?

Press the zinc blade flat on the surface and push or pull steadily; tilting the tool rounds the groove edges.

Which part of the 834D wears first and when should it be replaced?

The zinc blade edge dulls with use; replace the groover when the 3/8 in groove width widens or the 3/4 in depth becomes shallow.

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