Cold
Chamber
(217)

relatively
good

.5 - 75 lbs.

.020
inches

relatively
smooth

Good to
Excellent

Fair

Good to
Excellent

Excellent

Sand
Casting
(230)

+/- .125 - 
.0625
inches

1 - 50 lbs.

.25 
inches

200 - 600
microinches

Good

Fair to 
Good

Good to
Excellent

Fair to
Good

Hot
Chamber
(235)

+/- .015 - 
.0005
inches

.07 - 500 lbs.

.05 
inches

16 - 63
microinches

Good to
Excellent

Fair to
Good

Good to
Excellent

Excellent

Investment
(246)

+/- .005 - .002
inches

.3 - 40 lbs.

.005 
inches

50 - 125
microinches

Good to
Excellent

Fair to 
Good

Good to
Excellent

Good

Excellent

No Bake
Mold
(256)

+/- .005 - .015
inches

.5 lbs. to tons

.10
inches

65 - 125
microinches

Possible

Possible

Possible

Possible

Permanent
Mold
(gravity)
(258)

app.
+/- .010 - .015
inches

Iron: 2 - 20 lbs.
Al: 1 - 30 lbs.

.20 
inches

125 - 300
microinches

Good to
Excellent

Good to
Excellent

Good

Fair

Good to
Excellent

Plaster
Mold
(263)

+/- .005 - .010
inches

.5 lbs. to tons

.070 
inches

63 - 125 
microinches

Possible

Possible

Possible

Possible

Shell Mold
(267)

+/- .005 - .015
inches

.025 - 250 lbs.

.10
inches

Ferrous:
200 - 300
Nonferrous:
125 - 200
microinches

Possible

Possible

Possible

Possible

Possible

Possible

Possible