Power Tool Accessories
Spyder Bi-Metal Oscillating Multi-Tool Blade 5-Pack: A Jobsite-Ready Blade Set for Just About Any Cut
A five-blade bi-metal pack that handles wood with nails, PVC, drywall, clean wood, and even metal studs, with a universal fit for most major multi-tool brands.
Introduction
Anyone who has opened up a wall knows the problem: you need to run plumbing or alter framing, and the existing studs are full of nails. Once upon a time the default answer was a reciprocating saw, largely because that is where the blade selection was. That has changed. The oscillating multi-tool is now the first tool many contractors and DIYers grab for in-wall cuts, and blade availability is a big reason why. This Spyder bi-metal five-pack is a good example of how far those blades have come.
What Is the Spyder Bi-Metal Blade 5-Pack?
This is a five-blade pack of bi-metal oscillating multi-tool blades made for all standard oscillating multi-tools. The set covers a wide range of materials: PVC, wood with nails, drywall, clean wood, and even heavy steel. The lineup includes two 2-3/4 inch wood-with-nails blades, a single 2-1/2 inch wood-with-nails blade, a 1-3/4 inch clean wood blade, and a 1-1/4 inch metal blade.
Spyder states the blades are made from durable 8% cobalt bi-metal steel, with dual tricoated cutting teeth that resist heat buildup and can make up to 15 times more cuts than standard bi-metal blades.

Universal Fit for Nearly Every Tool Brand
Compatibility is where this pack removes the usual friction. The universal fit arbor works with Bosch, DeWalt, Milwaukee, Makita, Ridgid, Porter Cable, Craftsman, Ryobi, Skil, Cobalt, Rockwell, and Dremel, among others. Blades index with the tool with no trouble.
The only exception is Starlock, which is not supported. A Dremel adapter is included in the pack, which covers that popular compact tool without extra shopping.
Cutting Performance: Wood, Nails, PVC, and Metal
In a real framing alteration scenario, the wood-with-nails blades cut through multiple nails surprisingly fast, and the teeth stayed intact afterward. That is the whole point of bi-metal construction: embedded fasteners that would wreck a hole saw or ruin lesser blades simply get cut through.

The clean wood blade is the sleeper in the pack. Its fine tooth pattern looks almost like a Japanese pull saw, and it produces fast, reasonably clean cuts in clear lumber. Anyone blaming a ragged edge on the blade should probably look at the operator first.
Cutting Metal Studs in Tight Spaces
The metal blade also handles thin steel. Open up a wall and find metal studs, and this bi-metal blade with its titanium-style coating makes freehand alterations possible in spaces where snips simply will not fit. There is some heat generated during the cut, but the teeth held up well.

Things to Consider Before Buying
There is very little to criticize here. The main caveat is the lack of Starlock compatibility, so owners of Starlock-interface tools will need a different option. Also worth noting: the blades resist heat well, but metal cutting is metal cutting, so expect some warmth and slow down for the cleanest result.
Buying Advice
The variety in this five-pack is its real strength. One purchase covers demolition cuts in nail-filled lumber, clean finish-adjacent cuts, plastic pipe, drywall, and light metal work. If you own any standard oscillating multi-tool and you do renovation work, this pack meaningfully reduces how often you reach for the recip saw.

Conclusion
The oscillating multi-tool has earned its place as the go-to tool for in-wall alterations, and a versatile, durable blade pack like this one is why. With broad brand compatibility, cobalt bi-metal construction, and a blade for nearly every material you will meet inside a wall, this Spyder set is an easy recommendation for contractors and DIYers alike.
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This product is mentioned in the review. Check the specifications, options, and compatibility before buying.
View more details for Spyder Bi-Metal Oscillating Multi-Tool Blade 5-Pack