Also they could classified by their sleeves appearances and applications:
Integral blade stabilizers(alloy steel): The spiral blades machined to provide maximum mud circulation.
Stabilizer Mandrels : one pieces stabilizer sleeve mandrels
Standard stabilizer sleeves : Rig replaces able units to help solve the problems of logistics when drilling in remote4 control.
Barrel stabilizer sleeves : Designed to overcome the logistics difficulties normally.
Heavy duty stabilizers sleeves: Designed to overcome the logistics difficulties associated with hard formation drilling in remote areas.
Welded blade stabilizers: Used in the B.H.A for drilling soft to medium hard formation holes.
Usually 2 to 3 stabilizers are fitted into the BHA, including one just above the drill bit (near-bit stabilizer) and one or two among the drill collars (string stabilizers).
The blades are spiral milled in either left hand (L.H) or right hand (R.H) in three main configurations:
Wide open: 150° to 210°
Open :over 210° to 270°
Tight :over 270° to 360°
Blade diameters are ground to maximum of 1/32" under gauge on all hole sizes.