I have 18mm knife and blades are thin/flexible. Are 24mm blades thicker/stiffer?

I find the 24mm blades to be thick and strong with no flex.

How many blades does it hold?

Only 1 at a time. I have used this model for insulation cutting for the last 15 yrs. Best knife I have found. Only thing is the plastic piece that holds blade should be metal.

can i use 18mm blades for this?

No. You'll want to use 25mm blades.

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OLFA 25mm Extra Heavy-Duty Utility Knife (H-1) - Multi-Purpose Custom Cutting Depth Utility Knife w/Anti Slip Grip & Snap-Off Blade, Replacement Blades: Any OLFA 25mm Blade

OLFA 25mm Extra Heavy-Duty Utility Knife (H-1) - Multi-Purpose Custom Cutting Depth Utility Knife w/Anti Slip Grip & Snap-Off Blade, Replacement Blades: Any OLFA 25mm Blade

Product ID: 6228425

Details

Blade Material
High Carbon
Brand
OLFA
Color
Yellow
Handle Material
Abs Plastic
Item Length
5.25 Inches
Item Weight
0.3 Pounds

🔪25mm razor-sharp snap-off blade

🦾high-impact ABS handle with anti-slip grip

🛠️custom ratchet lock for precise depth

£18.95

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Description

🔪 Cut like a pro, grip like a boss—never settle for dull.

LEGACY OF EXCELLENCE - From the original Snap-Off Knife inventor, OLFA guarantees durability and performance backed by a lifetime warranty—join the elite cutting community.
ERGONOMIC SECURE GRIP - Symmetrical high-impact ABS handle with anti-slip rubber inset and stainless-steel blade channel for maximum control and safety during heavy-duty use.
BUILT FOR THE TOUGHEST JOBS - Engineered to slice through nylon, rope, laminates, leather, rubber, and gasket materials with ease—your go-to for any demanding project.
UNMATCHED CUTTING PRECISION - 7 razor-sharp snap-off segments crafted from premium Japanese tool steel ensure edge retention and industrial-grade sharpness.
TAILORED CUTTING DEPTH CONTROL - Custom ratchet lock system with unlimited blade positions lets you dial in the perfect cut every time—safety meets versatility.

The OLFA 25mm Extra Heavy-Duty Utility Knife (H-1) features a premium Japanese tool steel snap-off blade with 7 segments, a custom ratchet locking system for precise cutting depths, and an ergonomic anti-slip ABS handle reinforced with stainless steel. Designed for industrial and construction use, it effortlessly cuts through tough materials while delivering safety and durability backed by OLFA’s lifetime guarantee.

Specifications

ASIN	B001DKOQGU
Best Sellers Rank	#24,840 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #145 in Utility Knives
Blade Material	High Carbon Steel
Brand Name	OLFA
Color	Yellow
Customer Reviews	4.8 4.8 out of 5 stars (1,179)
Global Trade Identification Number	00091511600117
Handle Material	Abs,Plastic,Plastic Handle,Rubber,Stainless-steel,Steel
Handle Type	Manual-Retractable
Included Components	Assembly Guide
Item Length	5.25 Inches
Item Weight	0.3 Pounds
Manufacturer	OLFA
Manufacturer Part Number	5006
Manufacturer Warranty Description	guaranteed forever
Material Type	Plastic, Rubber, Stainless Steel
Model Number	5006
Product Style	Industrial
UPC	091511600117 091511200188
Unit Count	1.0 Count

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£18.95

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UK.

Secure transaction

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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