will these work with a Milwaukee Fastback Utility Knife

should work with most utility knives

What size are these blades? product description shows the lengtht as 5.7 inches which doesn't seem right. It looks like it should be around 3 inches

I know this question is old, but I thought since I was wondering, perhaps others still do as well. The blade measures approx. 2.25”... and by doing a little digging it turns out that is equal “approx.” 5.7cm

Are these blades rust resistant? I keep 3 or 4 knives at strategic places in my extremely humid garage. When I need one, they frequently are rusted.

Mine arrived (one pack of three) with corrosion on them, The card that the blades was on had obviously gotten wet enough to fall apart though. I think they come coated with some kind of oil, as they tend to stick together. But they will definitely rust with enough exposure to moisture. I am sure this is the same as with any carbon steel based blade.

How many blades are in each of the five packs?

The listed pack size is the actual blade count. So 5pk is 5 blades, 50pack is 50 blades.

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LENOX Utility Knife Blades, Titanium Edge, 5-Pack (20350GOLD5C)

Product ID: 309334365

Details

Brand
Lenox
Colour
Multi
Handle material
Metal
Item length
4 Inches
Material
Multi

⚡Titanium-coated high-speed steel edge for lasting sharpness

📏4-notch extendable blade for precision deep cuts

🛡️Shatterproof bi-metal construction for ultimate durability

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฿2308

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Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔪 Cut above the rest—because your projects deserve gold standard blades!

PRECISION DEEP CUTS - 4-notch blade extension lets you tackle thicker jobs with confidence and control.
CUT THROUGH ANYTHING - Engineered to slice drywall, insulation, flooring, roofing, and more with ease.
STAY SHARP CUT LONGER - Titanium edge technology keeps blades sharper, longer—less downtime, more productivity.
BUILT TO BEND NOT BREAK - Shatterproof bi-metal design flexes under pressure, conquering tough materials without fail.
UNIVERSAL FIT INSTANT UPGRADE - Fits most standard utility knives—upgrade your toolkit without hassle.

The LENOX Utility Knife Blades 5-Pack features titanium-coated high-speed steel edges for extended sharpness, combined with a shatterproof bi-metal construction that flexes without breaking. Designed with a 4-notch extendable blade, these versatile blades fit most standard utility knives and excel at cutting tough materials like drywall, insulation, flooring, and roofing, making them a reliable choice for professionals demanding durability and precision.

Specifications

ASIN	B0009ENCUW
Best Sellers Rank	#85,657 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #291 in Utility Knives
Brand	Lenox
Color	Multi
Customer Reviews	4.6 4.6 out of 5 stars (4,150)
Date First Available	7 August 2012
Item Weight	18.1 g
Material	Multi
Model Number	20350GOLD5C
Product Dimensions	5.08 x 5.08 x 15.24 cm; 18.14 g

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