"peg away" is a correct and usable phrase in written English.
It is a phrase used to express the idea of continuing to work steadily or persistently at something. For example, "Though studying for the test was challenging, she pegged away until she felt she was adequately prepared."
"They say, 'If only we'd done this with that moment' – still pegging away at how they could've made [Comedians] better.
Fourteen points down in 11 minutes, the French side refused to be rattled and pegged away until pressure and five Felipe Contepomi penalties had redressed the balance.
United are in front and have been pegging away at City for some time but I have no doubt there will be more twists and turns in this title race.
It is the writer's craft to write well, so he pegs away, till sooner or later, the consciousness throws up the luminescent line that satisfies the soul.
Cells were then either antigen-stimulated without washing PEG-HCCs away (stimulated after 0 h), or washed to remove excess PEG-HCCs and stimulated immediately (washed, stimulated after 0 h) or 6 h later (washed, stimulated after 6��h) for the measurement of T cell proliferation.
Hammer the pegs into the ground at a 45 degree angle so the end of the peg is facing away from the tent.
If the Violin, Fiddle or Viola bridge feet need to be re-positioned, place the instrument in your lap with the scroll and peg box pointing away from you (be careful to not let it fall).
Where possible, pieces of wood in good condition, or the worked ends of pegs, were taken away and conserved for later analysis.
Petkovic had improved markedly since the opening set and she broke again for a 5-3 lead only for Keothavong to peg her back straight away.
You will be turning the peg "towards" you or "away" from you based on how you would like to change the current pitch of the string.
