Dremel EZ Lock Starter Kit EZ406

The EZ Lock system delivers 6X faster accessory changes than standard mandrels, and the fiberglass-reinforced wheels last 2X longer than standard 426 cut-off wheels. For contractors running rotary tools all day, those numbers translate directly to billable hours saved.

This kit includes one EZ402 mandrel and five EZ456 cut-off wheels rated for 35,000 RPM. The tool-free system works with a simple pull-twist-release mechanism — pull down the mandrel sleeve, align the wheel with the cross-shaped tip, twist 90 degrees, and release the sleeve to lock. No screws. No screwdrivers. No dropping tiny parts in the snow.

Performance Specifications That Matter

At 1-1/2 inch working diameter and 0.045 inch blade thickness, these wheels handle real metal cutting. The fiberglass-reinforced construction and 35,000 RPM maximum speed put these wheels in professional territory. They’re built for cutting and slotting metal including hardened steel, trimming bolts and screws, cutting sheet metal and metal rods, plus plastic and ceramic materials.

The thickness matters. Dremel’s EZ409 runs thinner at 0.025 inches for fine cuts, but the 0.045-inch EZ456 wheels in this kit handle abuse better. They won’t flex as much under side load, though reviewers note wheels can break if side pressure is applied — standard physics for any cut-off wheel.

Specification	Value
Working Diameter	1-1/2 in (38.1 mm)
Blade Thickness	0.045 in (1.1 mm)
Maximum Speed	35,000 RPM
Shank Diameter	1/8 in (3.2 mm)
Lifespan vs Standard	2X longer than 426 wheels

Real-World Performance and Trade-Offs

With 4.7 out of 5 stars based on 127+ reviews, this kit delivers what contractors need. Users praise the extremely easy and fast wheel changes, durability for heavy metal cutting, and secure locking mechanism.

The catch? Higher initial cost than standard mandrels. But time is money on the jobsite. Standard mandrel screws strip out, get lost, and waste minutes per change. The one-piece mandrel design avoids the need for a screw and screwdriver entirely.

This kit works with all Dremel rotary tools that accept standard 1/8” shank accessories, including Dremel 3000, 4000, 4300, 8220, and 200 series. For contractors wanting even longer life, the EZ506CU premium CBN-coated wheel lasts up to 20X longer than the EZ456 — but at premium pricing.

Who Should Buy This Kit

Worth it for contractors and tradespeople who regularly cut metal with rotary tools. The EZ Lock mechanism saves real time over a workday. Applications include lightweight woodworking and slotting thin wood too, but metal cutting is where these wheels shine.

Skip it if you’re cutting once a month. The premium over standard mandrels only pays off with regular use. But for electrical contractors trimming conduit, HVAC techs cutting sheet metal, or anyone doing repetitive metal cuts, the efficiency gains justify the cost.

Limited 2-year warranty against manufacturing defects in the USA and Canada, with customer service support based in Racine, WI. The color-coded red system identifies these as cutting accessories — helpful when you’re digging through a gang box.

FAQs

What’s actually included in the EZ406 kit? The kit includes 1 x EZ402 EZ Lock Mandrel and 5 x EZ456 Fiberglass Reinforced Cut-Off Wheels.

How fast is “6X faster” for wheel changes? The entire process takes seconds: pull down the mandrel sleeve, align the wheel with the cross-shaped tip, twist 90 degrees, and release. Compare that to finding a screwdriver, removing the old screw, threading the new one, and tightening without stripping.

Will these wheels cut stainless steel? Yes, the wheels are rated for cutting hardened steel, which includes stainless. Keep the tool moving to prevent heat buildup.

Do the wheels really last twice as long? Dremel claims 2X longer life compared to their standard 426 reinforced cut-off wheels. Real-world life depends on material hardness and cutting technique.