Description
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A MULTI-PURPOSE – Stepped structure, One step drill bit is identical to 10 twist drill bits of different specifications. Size Includes 10 steps: 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″.
APPLICATION – Ideal for steel sheets/ aluminum sheets/ copper/ plastic/ wood board and lots of other varieties of sheet metal with ease countersink.
HIGH SPEED STEEL TITANIUM COATING – Industry grade fully ground high speed steel with titanium coating reduces friction and drills with less heat,which ensures strong wear-resistance and durability.
WE ARE DIFFERENT – The spiral groove is sharper than the straight groove, which is able to reduce the cutting resistance, support the cutting groove, and effectively block the metal splash as a result of damage.135° split point not only promises cutting speed,but additionally prevents slipping when start drilling.
EFFICIENT DESIGN – Laser marking scale is clear.3/8″ Tri-flatted shank fits into majority pistol drill and drill press securely without slip and shedding.Open hole, reaming hole, sink hole at one go.What are you looking ahead to?
