Drywall Knockdown Knives — Primary Tool

№09998

Hyde Tools 09998 24" MAXXGRIP® Knockdown Knife

BEST FOR · Flexible Lexan Blade : The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures.

MODEL 09998 · SKU H-09998 · UPC 079423099984

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$47.75 PER UNIT · SINGLE UNIT UNIT PRICE

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Flexible Lexan Blade : The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures.

Official Hyde specifications

Flexible Lexan Blade

The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures

Soft-Grip Threaded Handle

The soft-grip handle is threaded and compatible with all Acme-threaded extension poles, offering versatility and comfort

Tempered Aluminum Bridge

A professional-grade tempered aluminum bridge keeps the blade straight, ensuring consistent results

Optimal Flexibility

The acrylic blade offers the perfect balance of flexibility, reducing the risk of scoring the texture surface

Versatile Use

Whether creating a new knockdown finish or repairing existing surfaces, this tool delivers consistent and professional results

PRODUCT FIT · IS THIS THE RIGHT TOOL? Straight answers. If it's the wrong tool for your job, we'll say so.

Choose this when: Flexible Lexan Blade : The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures.

CHECK THIS AGAINST MY JOB →

Is this the right tool for your job?

✓CHOOSE THIS WHEN

Flexible Lexan Blade : The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures.
Soft-Grip Threaded Handle : The soft-grip handle is threaded and compatible with all Acme-threaded extension poles, offering versatility and comfort.
Tempered Aluminum Bridge : A professional-grade tempered aluminum bridge keeps the blade straight, ensuring consistent results.

✕CHOOSE A DIFFERENT TOOL WHEN

Hyde's own scope line, verbatim and load-bearing: these knives "are not intended for popcorn ceiling removal, putty, or spackle applications." The edge is engineered not to bite, which disqualifies it from removal of anything — and if the ceiling in question is existing acoustic texture from before about 1980, the question isn't the tool at all: old spray-applied acoustic material may contain asbestos, and it gets lab-tested before anyone scrapes, sands, or disturbs it (Wikipedia — popcorn ceiling) — an abatement boundary, in a different line's world (scrapers), behind a test this store keeps pointing at.
No compound is ever loaded on this blade — application belongs to the hopper gun and the drywall knives.
And within its own family: not the patch knife, not the perimeter knife — the 18" holds both of those titles, and assuming otherwise would be this page selling against its reader.

Jobs this tool does

EXACT JOB METHODS FOR HYDE №09998

Job guide How to Spray and Knock Down a Wall or Ceiling TextureOPEN JOB GUIDE

How the pros run it

Feel over figures

flex and angle carry no published numbers — load the blade to its spring and no further, and let the corner test-blob calibrate the day. The long stroke: walk it; strokes made by arm-reach alone end in pressure changes, and pressure changes print. Lap rhythm: same overlap, same direction, every band — a wide knife rewards monotony. The wipe: full-edge, every pass or two; a rag lives on the pole hand. The stop: the finish is done when it reads right through the blade, not when the arm is tired of it.

Asked before buying

BUYER QUESTIONS, ANSWERED BEFORE YOU ORDER

What's actually different from the 18-inch?

Six inches of blade — nothing else. Hyde claims one difference and this store honors that: same Lexan® polycarbonate, same rounded corners, same bridge, same Acme thread. Treat any listing implying more as wrong.

Which one for a whole ceiling?

This one — a third more band per stroke and the fewest lap seams. But the perimeter and fixtures still want the 18", which is why production crews carry the pair.

Can it fix a patch in my existing knockdown wall?

Patch matching is assigned to the 18" (with the 09980 gun) — a two-foot blade overshoots patch grain. This knife is for fields, and it says so.

Is the blade really acrylic?

No — polycarbonate, per Hyde's catalog, named LEXAN® in Hyde's own video; the store title's "Acrylic" is a flagged mismatch between chemically different plastics .

How long after spraying do I knock?

When the sheen falls off the spatter — a surface signal, not a number of minutes. Corner test-blob: smears, wait; flattens clean, go (section 2).

Does it fit an extension pole?

Yes — Acme-threaded soft grip, usable with or without a pole per Hyde's video, and the pole is how ceilings get knocked from the floor.

Can I take popcorn off with it first?

No — Hyde's own description bars popcorn removal, and a pre-1980s acoustic ceiling is an asbestos-test question before it is anyone's project (section 4).

Compare Hyde models

№09980

Air Texture Hopper Gun

$114.50IN STOCK

№09997

18" MAXXGRIP® Knockdown Knife

$44.47IN STOCK

Crew & facility ordering

Model & SKUModel 09998 · SKU H-09998 · UPC 079423099984

Product-specific quantity pricingSee this product’s published tiers above. Eligible discounts apply automatically at checkout.

PO & NET-30Approved contractors, facilities, schools and government buyers can route through Hyde Pro.

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Reviews

Specs & documentation

Full specification details

catalog product name: 24" MAXXGRIP® Knockdown Knife
official family claim: Flexible, transparent knockdown knife with angled polycarbonate blade with rounded corners to prevent damage to surfaces. Soft-grip handle is Acme-threaded for use with an extension pole. Tempered aluminum bridge.
official product name: Knockdown Knives
official variant identity: 09998 — 24-Inch
official description: Our Clear-Acrylic Knockdown Knives are essential for achieving smooth, consistent knockdown finishes on textured surfaces. Designed with both professionals and DIY enthusiasts in mind, it ensures the best finishes start with Hyde. Key Features: Flexible Lexan Blade : The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures. Soft-Grip Threaded Handle : The soft-grip handle is threaded and compatible with all Acme-threaded extension poles, offering versatility and comfort. Tempered Aluminum Bridge : A professional-grade tempered aluminum bridge keeps the blade straight, ensuring consistent results. Efficient Design : Reduces drying time for texturing, making your work more efficient and effective. Benefits: Optimal Flexibility : The acrylic blade offers the perfect balance of flexibility, reducing the risk of scoring the texture surface. Enhanced Comfort : The comfort-grip handle is designed to minimize hand fatigue during prolonged use, improving your overall experience. Durability and Longevity : Constructed from durable materials, this specialty drywall knife is built to last, providing value and dependability. Versatile Use : Whether creating a new knockdown finish or repairing existing surfaces, this tool delivers consistent and professional results. As industry standard-bearers, we ensure that our Knockdown Knives are not just another tool; they're a specialty instrument for specific tasks. Ideal for creating knockdown surfaces, these knives are not intended for popcorn ceiling removal, putty, or spackle applications. Achieve the Best Knockdown Surface : Elevate your texturing projects with the Flexible Acrylic Knockdown Knife. A testament to quality and innovation, this tool is your key to perfect finishes every time. Get yours today and experience the difference in your texturing projects!
official feature: Flexible Lexan Blade : The knife features a flexible, transparent angled Lexan blade, perfect for achieving precise knockdown textures.
official feature: Soft-Grip Threaded Handle : The soft-grip handle is threaded and compatible with all Acme-threaded extension poles, offering versatility and comfort.
official feature: Tempered Aluminum Bridge : A professional-grade tempered aluminum bridge keeps the blade straight, ensuring consistent results.
official feature: Optimal Flexibility : The acrylic blade offers the perfect balance of flexibility, reducing the risk of scoring the texture surface.
official feature: Enhanced Comfort : The comfort-grip handle is designed to minimize hand fatigue during prolonged use, improving your overall experience.
official feature: Durability and Longevity : Constructed from durable materials, this specialty drywall knife is built to last, providing value and dependability.
official feature: Versatile Use : Whether creating a new knockdown finish or repairing existing surfaces, this tool delivers consistent and professional results.
corroborated construction material: Retailer/distributor listing independently repeats: aluminum.

Hyde official catalog evidence ↗Hyde Tools manufacturer source ↗

$47.75PER UNIT · H-09998