Cobalt-Containing Secondary Step Drill Bit Stainless Steel Countersunk Head Twist Drill Step Countersunk Hole Drill Step Drill 1Pcs(M4 90 Black)

Reduced Shank Drill BitsProduct name: M35 cobalt-containing secondary step drillMaterial: M35 CobaltScope of application: suitable for processing cast iron, copper, aluminum, alloy steel, iron, die steel, low carbon steel, plastic, large materials and other materialsFeatures: The countersunk hole is processed at one timeNote: This drill can open stainless steel, only cold-rolled steel can be used, and quenched parts should be used with caution

• Reduced Shank Drill Bits
• 【See the second picture of the variant for detailed parameters】
• 【See the second picture of the variant for detailed parameters】