Cordless Die Grinder - DeWALT, 18V XR, 6 mm and 1/4 - DCG420N-XJ

DeWALT DCG420N-XJ Cordless Die Grinder, 18V XR, 6 mm and 1/4" collets

The DeWALT DCG420N-XJ is a compact cordless die grinder on the 18V XR platform with a brushless motor. In the manufacturer's catalogue the article is listed as a compact cutting and grinding tool in a bare tool version - its specification states 0 batteries and charger included - no. DeWALT quotes up to 447 MWO and a maximum speed of 24,500 min^-1.

Four speed settings

The tool has variable speed with 4 selectable settings - 10,000, 15,000, 20,000 and 24,500 min^-1. The settings are changed from an LED-backlit selector, and the trigger also controls the speed. The switch is a paddle type.

Compact body and work light

According to DeWALT the tool is up to 35% smaller than traditional 18V cordless die grinders - the comparison is by volume against the DCG426 grinder. The compact body makes it easier to work in confined and enclosed spaces. An LED light ring is built into the head of the tool to illuminate the work area.

Brake, clutch and spindle lock

The manufacturer lists an electronic brake that stops the tool in less than 1 second (on average, with a 2" cutting disc, which is not included), and an electronic clutch that reduces kickback if the accessory is pinched or jammed. The spindle lock allows accessory changes without extra tools, and mesh debris covers limit the dust drawn through the motor and the electronics. The body has a rubber overmould for a better grip.

Two collets per DeWALT's catalogue

DeWALT's catalogue lists for article DCG420N-XJ a 6 mm collet, a 1/4" (6.35 mm) collet and a collet wrench, with a total piece count of 4. The two collets cover both metric and imperial shanks of burrs and mounted points.

Applications

A die grinder is used for fine grinding, dressing welds, deburring and working edges with carbide burrs and mounted points, including in places an angle grinder cannot reach. 18V XR batteries, a charger and accessories are sold separately.

Technical specifications

Questions and Answers