Global Machinery Company 420W User Manual

Page 3

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OnlineToolReviews.com - GMC (Global Machinery Company) PPM Palm Planer - Detailed Review

reversible so you get double the life out

of them over a normal single-edged blade

set.

The power controls are located in easy

reach of the thumb and forefinger. The

switch lock release button is located up

top (with the chevron markings). The

power on/off button is located below and

lateral to this. To power up the tool the

top lock switch must be push down/

forward and held there while the lateral

on/off button is pressed to power up the

tool. To turn off the tool you simply

release the on/off button. The lock switch

does not have to be held down/forward

once the tool has been turned on. Both

switches have a rubber mold grip for

better grip/control.

The PPM's body features a mix of light

weight magnesium (belt drive cover, front

control area) hardened plastic, and

rubber overmolds for grip and comfort

throughout. Despite the light magnesium

and plastic casing, the tool doesn't feel

like a toy. It still weighs in at 1.9kgs,

which does seem to be a comfortable

weight in the hand. Not too light to feel

flimsy and vibrate excessively in use, and

not too heavy as to make it

unmanageable (and dangerous) with

single hand control. The whole tool

features a smooth, slimline design. The

motor housing, which is also where you

grip the tool in the palm has a rounded

barrel shape that easily contours to the

curve of your hand as you grasp the tool.

In fact, the tool is very comfortable to

hold and use.

A fully cast metal base is machined flat

and was verified to indeed be flat by my

shop straight edge. The fixed rear base is

solid and flat while the adjustable front

base features numerous (3) V-grooves to

allow edge chamfering to be achieved.

Each V-groove is milled at a different

depth too for versatility, to mill a specific

depth chamfer, or to use a different

groove each time to even out blade wear

by not using the same part of the blade

with each pass. In terms of depth

capacity, the PPM can remove up to

The cutterhead

Grooved front plate for chamfering

and edge work, flat rear plate for

accurate results.

PPM shown planing a door edge

Knocking off the sharp corners

using the chamfering grooves

http://www.onlinetoolreviews.com/reviews/gmcPPMPalmPlaner.htm (3 of 6)6/02/2007 2:36:28 AM

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