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About Fein


what is Fein?

King Arthur’s Tools is proud to announce our new partnership with a name synonymous with quality power tools, Fein.

For the first time in KAT history, we have partnered with a brand we highly recommend for use with our accessories. We are thrilled to offer this 4- 1/2″ Fein paddle-switch grinder on its own AND with the grinder as a combination paired with our Holey Galahad Carbide Discs!

The Fein 4-1/2″ Paddle Switch Grinder packs the power and versatility of a larger angle grinder in a lighter, compact, more ergonomic design. Its smaller grip size allows for better control and ease of operation while removing, cutting, carving and shaping wood.

What Can Fein do?

  • Solid metal gear head for extended tool life
  • Extended carbon brush for longer service life
  • Ergonomic grip = less fatigue
  • Powerful motor for increased performance
  • Rotates in 90° steps
  • Multiple applications


  • Power consumption: 760 Watts
  • Power output: 420 Watts
  • 110v North American plug only
  • No load speed: 12,500 rpm
  • Cable with plug: 8 ft
  • Weight according to EPTA: 3.75 lbs
  • Center Shaft Mounting thread: 5/8-11 in
  • Grinding wheel Ø: 4-1/2 in (115 mm)

Fein + MANPA Tools

FEIN Angle Grinders
Paddle Switch Or Slide Switch?

SLIDE SWITCH, Thumb Control

We specifically brought in #40005 Fein Model # WSG7-115 to suit Manpa Tools unique product line

  • Virtually all their fantastic tools are designed to be powered by slide switch angle grinders
  • Their design is very compatible with the position of the slide switch
  • Manpa Tools have designed their accessories to be used on their many lengths and types of extensions fitted directly on slide switch grinders
  • Their design greatly reduces the probability of wood shavings accumulating under the “Off” switch.
  • Makes it easy to turn on and off
  • Using a paddle switch actually interferes with Manpa Tools operation, except for a few items fitted directly to the angle grinder
  • This grinder style is the safest and the best when attaching the Grinder HolderMP21-9
  • Attaching the holder around the body of grinder gives you:
  • 1) more leverage
  • 2) allows you to do really heavy work attaching different Manpa extensions and accessories
  • 3) comfortably and safely use the 7 positions on the grinder holder
  • You lose maneuverability and some functionality with paddle switch grinders


  • King Arthur’s Tools highly recommends #40000 for all products it manufactures, markets and distributes.
  • Our accessories are all mounted directly over the grinder’s center shaft
  • For close in control, and to remove material quickly,
  • Wood shavings and sawdust can build up under the “Off” section of slide switch grinders
  • This causes the switch to stay on when switching it “Off”.
  • Using this paddle switch angle grinder also applies when using any Manpa 4” cutting accessories fitted directly on the grinder. MP21-4-12, MP21-4-8, MP21-5-4, MP21-6-4

Fein + Holey galahad


We’re not just selling the FEIN angle grinder individually; we’re offering a selection of our top 4” (100mm) Holey Galahad accessories fitted to it. Any Holey Galahad disc paired with the FEIN angle grinder is a fantastic combination for shaping as well as rapid wood removal of rotten wood, excess wood, bark, high spots, ridges and chainsaw cuts, leaving a coarse to even finish on contoured and convex surfaces. Nothing shapes wood better! From bowls to bears or artistic sculptures to log homes, furniture making, and taxidermy – anytime you need to get a final shape, whether flat or contoured, Holey Galahad® “see through” discs in conjunction with the FEIN paddle switch grinder can help bring your vision to reality.

  • There’s no stopping to continuously lift the angle grinder to check your progress. You have an uncanny ability to see the surface being sanded through the disc as it spins, improving your productivity.
  • It’s very fast and smooth.
  • The disc can be used on both its face and edge surfaces.
  • There’s no heat buildup and retains excellent value. It can be cleaned and reused multiple times, saving hundreds of dollars in using flap disc sanders, time, labor and effort.
  • Discs are 4" (100mm) in diameter and feature patented structured tungsten carbide teeth bonded to steel discs over the total cutting surface.
  • Tungsten carbide needles are manufactured in a 5-stage patented process.
  • FEIN angle grinder Made in Germany
  • Holey Galahad proudly MADE IN THE USA