Step Drill Bit Set Hss Cobalt 5pcs
Description
HSS and Titanium Coating
Made of strong and durable high speed steel coated with titanium , high speed steel make it last longer than others, titanium coating ensure easily cut thin through steel sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean.
Sizes:
# 1: 3/16 “to 1/2″ 6 Steps (3/16 ”, 1/4 ”, 5/16 “, 3/8 ”, 7/16 ”, 1/2 ”)
# 2: 1/8 “to 1/2” 13 Steps (1/8 “, 5/32″, 3/16 ”, 7/32 “, 1/4 ”, 9/32″, 5/16 “11/32″, 3/8 ‘, 13/32’, 7/16 ”, 15/32 “, 1/2 ”)
# 3: 1/4 “to 3/4 ” 9 Steps (1/4 ”, 5/16″, 3/8 “, 7/16”, 1/2 “, 9/16”, 5/8 “11/16”, 3/4 “)
# 4: 1/4 “to 1-3 / 8” ’10 Steps (1/4′ ‘, 3/8 “, 1/2”, 5/8 “, 3/4”, 7/8 “, 1 “, 1-1 / 8” 1-1 / 4 “, 1-3 / 8”)
# 5: 3/16 “to 7/8″ 12 Steps (1/4 ”, 5/16 “, 3/8”, 7/16 “, 1/2”, 9/16 “, 5/8” , 11/16 “, 3/4”, 13/16 “, 7/8”)
