One other version is the polypropylene knob with a brass insert which comes with a T-handle. This make maneuvering easy and attaches well to machines that require constant tweaking in order for them to work well. A variation in this kind of a know is the locking one, which prevents the knob from vibrating too much and does not allow a back off. It works to your advantage when you are trying to achieve a consistency in installation torque and with precise levels of adjustments. It is easy to put in place and can be done without any instruments or tools.
The most popular kind of knobs is those used in heavy machinery and made of cast iron. These knobs are made of cast iron that is fine grained in nature. They are available in different varieties such ad blanks that are rough. Those with unfinished casts and some other without handles or a bore. Hand wheels come with a starter hole the size of which is adjustable. Depending on the kind of machinery it is being used with you can opt for those with luster or those with polished steel handles. If strength is what you are looking for, then web contoured versions are good.
The mushroom knob known is a great one for machine based tools or for jigs and fixtures. The control ball is plastic thus giving the entire set up a presentable look. It is available in range of dimensions that is often measured in millimeters. You can also look at the lobed knobs that come in six or eight version. You also get a revolving hand to be attached to it for better control. These are constructed with toughned plastic that is smooth to the touch. You get the polished and unpolished versions in this.
There are several knob handles that you can look. Where you get your product form makes a huge difference. Therefore going with a reliable vendor is a must if you want our product to come together well.