pocket boring bar
 

Carbide from Harbor Fright 6.9" blades or 10" blades
makes good cutters in a pocket boring machine ,

bar stock makes cones for the dead end of the boring
bar ,

6007 -2RS ball bearings that slide in and out

on the I,D, of a steel tube , suitably bored to finish .

6007's are on a ENCO arbor , cheap about $12 for

a MT3 female to MT2 male arbor .

Magnetic chucks are $1.00 Harbor Fright rectangular

magnets sandwhiched between steel/iron , 1/16" thick

that take the "field" down to work surface .

brass isolators to separate the magnet assy .

Pocket Bore bars can bore a hole , with a following

pilot , if ya blast the chips out of the path .

A H.F. 550 RPM 1/2" drill motor , $45 works OK

the var speed isnt real bad . you cud add a

2-to-1 reduction , using #40 chain and 2 sprockets ...


Bought a Longevity-inc.com 518 Combo welder
for $650 , transistors are under high stress , one broke
off . They stall , wont warranty the welder ...

The $200 H'F' Red inverter welder isnt expensive .
Need to nix the delay on start-up .
all the way down , it reads 11vdc and easily starts
my H'F' 5500 watt GenSet .

HF Plasma ( $650 ) works well , dont touch copper cup

to work piece , even though the pilot has a heavy

choke to limit the pilot amps ..

The air PSI must be adjusted precisely ,

the after cool , shud be done with water ...