Heller HSS Drill Bits Description Please Choose Bit Type, Size, & Amount From Dropdown Boxes Above Genuine Heller Product All Bit Types Have A Cylindrical Shank Cobalt - Perfect For All Metal Types Titanium - Suited To Irons, Sheet Metals, & Softer Steels Ground - Suited To Irons, & Sheet Metals Ground Long - Suited To Irons, Sheet Meals, & Softer Steels Dimensions Please Refer To 'Size' Dropdown Box For Bit Sizes View All Heller Drill Bits » View All Drill Bits» View Store » inkfrog terapeak