offhand grinding

offhand grinding

[¦ȯf‚hand ′grīnd·iŋ]
(mechanical engineering)
Grinding operations performed with hand-held tools. Also known as freehand grinding.
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References in periodicals archive ?
The areas involving grinding in the foundry are generally portable grinders, swing frame and offhand grinding on floorstands or pedestal machines--at these locations foundry workers could develop vibration-induced problems.
They excel at offhand grinding that is typical in foundries, where the castings are ground by operators holding the parts and applying hand pressure.
For typical offhand grinding operations on machines with 3-12 hp drive and moderate fixed speeds - where pressure depends on the method and strength of the operator - ceramics may not perform to merit their additional costs.
If used in offhand grinding, ceramic abrasives should be used with harder robber contact wheels (70-95 durometer) with aggressive serration.