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Key Features

• -[M35 Four groove step drill]-The ordinary step drill is easy to flex during the cutting process, but the four groove step drill is more stable in the cutting. 1/8"-1/2"(13 Step Size). The service life is twice that of ordinary ladder drills, the drilling accuracy is significantly improved, the cutting speed is faster when drilling, and it has a unique effect on stainless steel drilling.
• -[M35 Cobalt High Speed Steel]-M35 cobalt high speed steel can be obtained by proper heat treatment with high hardness , high red hardness and high wear resistance. Its toughness and bending strength are higher than that of ordinary high-speed steel, which is better for hard materials.
• -[TiAlN] -TiAlN coating is a new coating material in recent two years. It has high hardness, high temperature, good thermal hardness, strong adhesion, low friction coefficient and low thermal conductivity coefficient.
• -[135 °cutting angle]-The increased angle of the drill tip is more suitable for drilling hard materials than 118 °. Tip-The temperature of the drill will increase due to high speed rotation. It is suggested to add cutting oil or spray water to cool the drill during continuous operation, which can effectively prolong the service life of the ladder drill. If the product has any quality problems.