Stone Tools Master Chuck Keys
Stone Tools Master Chuck Keys
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  • Master Chuck Key
  • Carbon or Stainless Steel Models
  • Two sizes open 1/4 to 3/4"
  • Open over 200 different chucks
  • Master Chuck I - large key fits heavy duty 3/8 to 3/4" chucks (ST12/12A)
  • Master Chuck II - smaller key fits 1/4 to light duty 1/2" chucks (ST13/13A)
  • Stainless steel models offer extra wear resistants - does not rust