Drywall Finishing Tools

LEVEL5 · Inside corner tools

4-by-3.5-Inch Stainless Inside Corner Knife

LEVEL5 stainless two-face corner knife with a red handle and metal end.
LEVEL5 stainless two-face corner knife with a red handle and metal end.

Compatibility and working details

Model
5-310
Listed blade size
4 × 3.5 in
Blade
Flexible stainless steel
Fit and buying advice ↓

When to choose it

Model 5-310 has a four-by-three-and-a-half-inch blade and is designed to flex to 90 degrees during use. Measure the joint and room around its two faces. Compare a smaller wing profile if a nearby return gives less clearance.

The listing describes flexible stainless steel and a rubber grip with a metal end. Choose an adjustable inside tool if the intended angle is wider or narrower than the angle this knife is designed to work.

Specifications

Brand
LEVEL5
Construction
Flexible inside corner knife
Work task
Working compound at a square recessed joint
Model
5-310
Listed blade size
4 × 3.5 in
Blade
Flexible stainless steel
Intended working angle
90° inside
Amazon.com reference
B076R371G6

Fit and buying advice

Measure the corner and check room for both wings.

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Questions about this product

What changes compared with the adjustable nylon tool?

The adjustable tool has a named range. This one uses flexible stainless steel for a recessed right angle.

Is this the outside model?

The selected listing is the inside 5-310. Match the working profile to the shape of the corner.

Can the listed wing sizes tell me the angle?

The sizes identify the blade dimensions. The listing gives the intended working angle separately.

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