Don't know whether these blades are suitable for 'fk5100k' oscillating saw. There are two physical interfaces for various brands of oscillating saws. The universal fit is offered by the Sonic-crafter blades and works well with my Porter Cable brand saw.

Does this fit a Rk5102k?

Yes, this will fit and work with the RK5102K. However, you may have to use the washer (spacer) that comes with it if the blade doesn't provide a tight fit on the tool.

Can rw 9122 blade replaced by the rw8981k?

I am not sure what the blade number references , but if is the same type but with the older close mounting star hole it will with an adapter that you can buy.

Have worx model wa5012 will these fit?

I believe they will with the universal fitment system

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Rockwell RW8981K Sonicrafter Oscillating Multitool End Cut Blades with Universal Fit System, 6-Pack

Rockwell RW8981K Sonicrafter Oscillating Multitool End Cut Blades with Universal Fit System, 6-Pack

Product ID: 13111782

Details

Brand
Rockwell
Color
Black
Compatible Devices
Oscillating
Item Thickness
1.38 inches
Material
Plastic
Number of Items
1

⚡1.38-inch blade thickness for durable performance

🔧Universal Fit System for cross-brand compatibility

🪚6 precision blades for versatile cutting

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Description

🛠️ Slice through your projects like a pro—never get caught without the right blade!

CUT THROUGH ANYTHING - From wood to metal, these blades handle it all with precision and power.
PRECISION MEETS POWER - Two precision end cut blades for detailed work, plus bi-metal blades for tough materials.
READY FOR REPEATED USE - 6-pack ensures you’re always stocked for any project, big or small.
UNIVERSAL COMPATIBILITY - Fits seamlessly with most oscillating multitools—no tool left behind.
ENGINEERED FOR EFFICIENCY - Optimized blade thickness and design for faster, cleaner cuts every time.

The Rockwell RW8981K Sonicrafter 6-pack end cut blades feature a universal fit system compatible with multiple oscillating multitool brands. This set includes two standard wood blades, two precision blades for soft plastics and wood, and two bi-metal blades designed for tougher materials like metal and fiberglass. Each blade measures 1.38 inches thick, delivering durable, precise cuts across a variety of materials, making it an essential upgrade for professionals and DIY enthusiasts alike.

Specifications

ASIN	B008X447UE
Best Sellers Rank	#271,020 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #335 in Power Oscillating Tool Blades
Brand Name	Rockwell
Color	Black
Compatible Devices	Oscillating multitool devices
Compatible Material	Fiberglass, Metal, Plastic, Wood
Customer Reviews	4.5 4.5 out of 5 stars (271)
Global Trade Identification Number	00845534011005
Included Components	Rockwell RW8981K Sonicrafter Oscillating Multitool End Cut Blades with Universal Fit System, 6-Pack
Item Dimensions L x W	1.9"L x 4.3"W
Item Thickness	1.38 inches
Item Type Name	Rockwell RW8981K Sonicrafter Oscillating Multitool End Cut Blades with Universal Fit System, 6-Pack
Manufacturer	Positec USA
Material Type	Plastic
Model	RW8981K
Number of Items	1
Part Number	RW8981K
Set Name	Rockwell Sonicrafter End Cut Blades Set
Style Name	Industrial
UPC	797267608567 845534011005
Unit Count	1 Count
Warranty Description	Warranty

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¥15412

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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