Comparison : Item # D413610100, 60° HSS RH Combined Drills and Countersinks, Plain Type (USA)
Item # D413610200, 60° HSS RH Combined Drills and Countersinks, Plain Type (USA)
Item # D413610300, 60° HSS RH Combined Drills and Countersinks, Plain Type (USA)
Item # D413610400, 60° HSS RH Combined Drills and Countersinks, Plain Type (USA)
Item # D413614500, 60° HSS RH Combined Drills and Countersinks, Plain Type (USA)