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Hyde 09425 stainless steel outside corner tool with flexible 12 inch blade and overmoulded handle

Hyde Tools

Hyde Tools 09425 Outside Corner Tool Flex Stainless Steel 12 in hand tool

SKU CH-RGZF-RS7CN

Finishes drywall outside corners with a flexible 80-degree stainless-steel blade that conforms to 90-degree angles for even compound application

  • Product typeDrywall & Plastering Tools
  • Flexes around 90° corners for smooth outside joints
  • 80° blade angle matches standard corner geometry
  • 12 in. stainless steel blade resists corrosion
  • 5 1/4 in. width covers wide seams in one pass
  • Overmolded straight handle reduces hand fatigue

Essential Drywall Finishing Tool

The Hyde 09425 Outside Corner Tool is built for drywall professionals and DIY renovators who need clean 90 degree corners. Its flexible stainless steel blade conforms to the corner angle while spreading joint compound evenly. The 12 in. blade length and 5 1/4 in. width cover standard outside corners efficiently. A comfortable overmolded grip on the 5 1/2 in. handle reduces fatigue during extended taping sessions.

Capacity and Corner Coverage

The 4 in. wide blade with an 80 degree angle flexes around 90 degree corners to apply compound in a single pass. It handles standard drywall outside corners and tight spaces where rigid tools cannot reach. The tool runs out of effectiveness on inside corners, curved surfaces or angles sharper than 90 degrees. It is not suited for heavy plaster buildup or wide bullnose profiles beyond the blade width.

Durability and Handling

Stainless steel construction resists corrosion from wet joint compound and repeated cleaning. The straight handle with overmolded grip stays secure when hands are damp or coated in dust. No moving parts or adjustments mean consistent performance without maintenance. The rigid blade holds its 80 degree angle through daily use on job sites.

How it compares

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

Price $15.99
Cheaper than about 66% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameHyde
Product typeDrywall & Plastering Tools

Questions about this item

Will the 12 in stainless steel blade reach over the studs I already have in place?

The 12 in blade spans the corner while the flexible stainless steel conforms to a 90 degree corner using its 80 degree angle, working over existing framing.

How can I confirm the 80 degree blade angle is flexing correctly around my 90 degree corners?

Apply joint compound and run the tool along the corner; an even, continuous coat with no gaps or ridges shows the blade is flexing as designed.

Does the 09425 come with any extra blades or a mounting bracket, or is it just the single tool?

The box contains the single outside corner tool with its overmolded straight handle; no extra blades, brackets or accessories are included.

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