Show better etter dra drill 11 steels with the model 8 waugh sharpener and hole puncher any blacksmith can quickly master the technique of forging accurate bits and shanks then using the waugh to check temperatures in the hardening operations maximum penetration and retention of gauge is assured the saving in labor and the increased efficiency of your rock drilling equipment will quickly repay the cost of the investment rap LS q w i K DRILLI tL UP i AR ir U MR affo y 0 J A N YZ COLORADO branch offices and stocks in all important centers |