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DIN345 Black Oxide Hardened HSS Morse Taper Shank Twist Drill Bits For Wood Plastic Metal Drilling 13-60mm Metric Size MT1- MT6
Black Oxide Drill Bits
Black Oxide Drill Bits are constructed by heating HSS bits to 950 degrees Fahrenheit. This creates a black oxide finish that will resist rust and corrosion, and also reduces the friction between the bit and the material, which in turn speeds up the drilling process.
50% Longer Service Life
Black oxide bits are made to last up to 50% longer than standard high-speed steel bits, offering premium durability and speed, and they are considered to be the best general purpose drill bits on the market.
No Center Punch Required
The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Must be used and operated at proper RPMs for maximum efficiency
Application
Black oxide drill bits are ideal for a multitude of materials including steel, aluminum, copper, brass, PVC, polycarbonate, acrylic, oak, maple, medium density fiberboard, ABS plastic, nylon, and composite materials.
Specification:
Material:HSS 4241(High Speed Steel)
Shank Type: Morse Taper MT1 & MT2
Standard:DIN345
Point Angle:135° Quick-Cut Points(Self-Centering)
Surface Treatment: Black Oxide
Size Chart:As The Picture Show
Hardness: HRC.65
Note:
1.Not for Hardened Steel
Black Oxide HSS 4241 grade cobalt drill bits are NOT suitable for hardened steel, high carbon steel and heat-treated steel. Please buy carbide drill bits to drill these materials.(We also have YG6 grade carbide drill bit for sale, Please contact customer to order)
2.Cooling Liquid Required
Please use with cooling liquid to prolong the working life of the drill bits and to avoid overheating and breakage.
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