Verb (used with object) : Heavy work callused his hands.    From Dictionary.com. 

Winslow stretched out his arms, callused palms up.    From Wordnik.com.  [html]

I couldn't find a root anywhere, but it was callused.    From Wordnik.com.  [Northern Nut Growers Report of the Proceedings at the Twenty-First Annual Meeting Cedar Rapids, Iowa, September 17, 18, and 19, 1930] Reference

He looked down at his scarred, battered, callused hands.    From Wordnik.com.  [Watcher 3] Fire Watcher]

Now they are swollen, callused, and cracked at the heels.    From Wordnik.com.  [The Joy Luck Club]

His hands were callused, his fingernails cracked and dirty.    From Wordnik.com.  [Fatal Care]

He held the curtain aside with one callused, battered hand.    From Wordnik.com.  [Watcher 3] Fire Watcher]

He rubs his thumb against the callused pad of the index finger.    From Wordnik.com.  [Deadheading] Reference

It hovered, not quite steady, the long, callused fingers spread.    From Wordnik.com.  [A Baby For Emily]

These callused rapidly and were planted immediately in the nursery.    From Wordnik.com.  [Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting Urbana, Illinois, August 28, 29 and 30, 1951] Reference

A man's hands, roughened and callused from a lifetime of hard work.    From Wordnik.com.  [Thief Of Hearts]

Gentle fingers, callused from practice, skating over her cheekbone.    From Wordnik.com.  [Hunter,Healer[SequeltoTheSociety]]

I followed his gaze to my palms, now callused and scratched with hay.    From Wordnik.com.  [The Island] Reference

The boy screamed again and lashed out with one filthy, callused heel.    From Wordnik.com.  [Blood Lines]

His callused palm lingered briefly against her lips before he lowered it.    From Wordnik.com.  [Thief Of Hearts]

He touched her cheek, skating his callused fingers over the perfect curve.    From Wordnik.com.  [Watcher 3] Fire Watcher]

Second year leader was cut further and when callused, top was then removed.    From Wordnik.com.  [Northern Nut Growers Association Report of the Proceedings at the 41st Annual Meeting Pleasant Valley, New York, August 28, 29 and 30, 1950] Reference

He ran his callused hand across her swollen belly in slow, sweeping strokes.    From Wordnik.com.  [Cradle and All]

"I see nothing at moment," the giant said, rubbing his orb with a callused fist.    From Wordnik.com.  [Dragon on a Pedestal]

There were those massive shoulders and bulging biceps, those big, callused hands.    From Wordnik.com.  [A Baby For Emily]

Several layers of wood could be counted underneath these callused margins -- often.    From Wordnik.com.  [Northern Nut Growers Association, Report Of The Proceedings At The Tenth Annual Meeting. Battle Creek, Michigan, December 9 and 10, 1919] Reference

His callused palm would chafe a little, but oh how the sensations would excite her.    From Wordnik.com.  [In His Own Defense]

His hand — callused fingertips — glided up her legs, under her rucked-up skirt.    From Wordnik.com.  [The Hollow]

He was lower to the ground and his callused paws provided friction against slipping.    From Wordnik.com.  [The Plains of Passage]

It was right there under his callused middle finger, he thought, but then again, not.    From Wordnik.com.  [Harry, Giselle and Joyce] Reference

MR. BERNATH: No, not too much, if it's callused up good, if the union is hard enough.    From Wordnik.com.  [Northern Nut Growers Association Report of the Proceedings at the 41st Annual Meeting Pleasant Valley, New York, August 28, 29 and 30, 1950] Reference

His hands were raw and callused, but they had been scrubbed clean of stains and grease.    From Wordnik.com.  [Midnight in the Garden of Good and Evil]

"The Sheris engaging in a bit of hyperbole," he said and held out a thin callused hand.    From Wordnik.com.  [Blood Test]

Their hands are working hands, already far too callused and cracked for such a young age.    From Wordnik.com.  [CNN Transcript Dec 30, 2005] Reference

One of the crew boss's callused hands reached out but stopped before it reached Jennifer.    From Wordnik.com.  [Firestorm]

His fingers were stiff and callused, his left hand still inflexible from lack of practice.    From Wordnik.com.  [Once An Angel]

He let go of her, sliding his hands down her arms, callused palms gentle against her skin.    From Wordnik.com.  [Hunter,Healer[SequeltoTheSociety]]

Danny's brows lowered and his hand twitched back, away, callused fingers snagging on silk.    From Wordnik.com.  [Strategic Engagement]

Her small hand in mine was very warm to the touch compared to Spink's cold and callused one.    From Wordnik.com.  [Shaman's Crossing]

"I hope nobody minds if I talk," he said, beginning to move callused hands above Rand's side.    From Wordnik.com.  [A Crown of Swords]

All but two of the men were grizzled or balding, with leathery faces and work-callused hands.    From Wordnik.com.  [The Fires of Heaven]

He sat there quietly, waiting, with his scarred and callused hands palm-up, resting helplessly.    From Wordnik.com.  [Watcher 3] Fire Watcher]

Black mud and dried blood crusted his fingertips and caked the callused whorls of his knuckles.    From Wordnik.com.  [Red] Reference