Hand Drilling and Breaking Rock for Wilderness Trail Maintenance

Table of Contents

• Introduction
  • Description of Tools
  • The Problem
  • History
• Technique
  • Drilling
  • Breaking Rock
  • Rock Types
  • Wedges (Plugs) and Feathers
  • Miscellaneous Tips
  • Picking
• Maintenance
  • Drilling Steel
  • Drilling Hammers
  • Wedges and Feathers
  • Picks
• Sources of Supply
  • Drilling Steel
  • Drilling Hammers
  • Wedge and Feather Sets
  • Picks
• Conversion Tables
• Bibliography