can it cut galvanised steel

Yes, this can cut galvanized steel. One thing to be careful of is the gases release by the zinc is *really* bad for you, so make sure you have GOOD ventilation and a mask so you are not breathing in the fumes.

can i cut #4 rebar with this blade?

It will cut like a knife through butter.

I need to cut a 1" case hardened steel shaft - hardness C60 to .08" depth. Will this blade work?

It will cut your shaft but you may burn threw one or two disks to do it. a chop saw with a 12" to 14 " blade would be better if you are cutting a lot of hard shafts.

Can i use these on my oerter cable drill? if so what sized arbor do i need?

The disc itself is 7/8" arbor. I think you meant to write 'Porter Cable', either way I don't think a drill has enough rpm's and you won't have the protection of a grinder shield. You don't want to get hurt, keep it safe and good luck.

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DEWALT 4 1/2 Cut Off Wheel, Angle Grinder Cutting Disc, 5 Pack, Aluminum Oxide Abrasive Chop with 7/8 Arbor for Metal Cutting, Grinding Wheels 4 1/2 in x .045 in (DW8062B5)

Product ID: 3578935

Details

Brand
DEWALT
Compatible Devices
Angle Grinder
Grit Material
Aluminum Oxide
Grit Type
Medium
Product Dimensions
4.5"L x 4.5"W

🔥50% longer life with Temper Point grains

⚙️4.5-inch diameter for versatile metal cutting

🛡️Dual fiberglass layers for enhanced durability

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Rp336062

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Cut sharp, last longer—DEWALT wheels that keep you ahead of the grind.

BUILT TO LAST - Two fiberglass sheets reinforce strength and reduce breakage for safer, longer use.
METAL MASTERY - Effortlessly slices through carbon steel, stainless steel, nickel alloys, and more.
PRECISION FAST CUTS - Thin .045-inch design with high-grain concentration ensures burr-free, aggressive cutting.
TRUSTED PERFORMANCE - Top-rated by pros for reliability and clean cuts—your go-to for every metal project.
CUT MORE REPLACE LESS - Temper Point grains deliver 50% longer wheel life—work smarter, not harder.

DEWALT’s 4-1/2 inch Aluminum Oxide Cut Off Wheels combine razor-sharp Temper Point grains with a thin .045-inch profile and dual fiberglass reinforcement to deliver 50% longer life and aggressive, burr-free cuts on a wide range of metals. Designed for angle grinders, these durable discs excel in cutting carbon steel, stainless steel, and nickel alloys, making them the professional’s choice for efficient, reliable metalworking.

Specifications

ASIN	B005B8LZCI
Best Sellers Rank	#712 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Cut-Off Wheels
Brand Name	DEWALT
Compatible Devices	Angle Grinder, Bench Die Grinder
Compatible Disc Grinder Tool Models	DEWALT DCG416B
Compatible Material	Carbon Steel, Stainless Steel, Nickel-based Alloys
Construction Type	Coated
Customer Reviews	4.7 4.7 out of 5 stars (16,934)
Global Trade Identification Number	00028877525877, 40028877217022
Grit Material Type	Aluminum Oxide
Grit Number	60
Grit Type	Medium
Included Components	DW8062B5 - 4-1/2" x .045 x 7/8 HP T1 Cut 5 Pack
Industry Standard Identifier	00028877525877
Item Diameter	4.5 Inches
Item Dimensions	4.5 x 4.5 x 0.05 inches
Item Dimensions L x W	4.5"L x 4.5"W
Item Thickness	0.04 Inches
Item Type Name	4-1/2 x .045 x 7/8 HP T1 Cut 5PK
Item Weight	9.07 g
Manufacturer	DEWALT
Material Type	Blend
Maximum Rotational Speed	13300 RPM
Model	DW8062B5
Number of Items	1
Part Number	DW8062
Recommended Uses For Product	Cutting
UPC	028877525877
Unit Count	5.0 Count

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