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Sharp and spiral cutting edge provides neat and smooth cuts.
Black Oxide Finish - Black oxide surface treatment holds up better lubrication for smoother drilling.
Wide application for drilling of stainless steel, die steel, I-steel, ordinary steel, Angle iron, rubber, plastic, aluminum, copper, wood, and other materials.
Please Note: To make clean and precise holes, water is required for lubrication and cooling when drilling metals. Increased use of water lubrication will extend drill bit life.
Use tips: 1, if the drill material is hard, first use a 3-6mm drill bit to make a small hole, and then use a large drill bit to reexpand the hole.
2, drilling hard drill speed should be between 80-120 effect is good, the greater the number of RPM can not drill down, burn the drill bit.
3, because stainless steel contains more alloy components, its hardness and mechanical properties are higher, the need to apply enough pressure and motor power when drilling with a hand drill is large enough, it is easy to use a bench drill.
4, When drilling with cobalt head with equal handle, add water or coolant to cool the drill to prevent the drill bit from burning out..
Specification:
Product Name: Reduced Shank Drill Bit
Material: 9341 High Speed Steel
Cutting Diameter: 18mm / 0.7”
Drill Shank Diameter: 12.7 mm / 1/2”
Overall Length: 150mm / 5.9”
Shank Type: Round Shank
Package Included:
2Pcs x 18mm Reduced Shank Drill Bit
$46.59
$ 22 .99 $22.99