GREENER Conical Drill Bit Hole Opener for Metal Stainless Steel Reamer High Hardness Cone [4-16]

High hardness and enhanced sharpness for superior cutting performance

Nitriding treatment applied to the drill bits surface, providing excellent wear resistance, fatigue resistance, corrosion resistance, and high-temperature resistance

Suitable for various metal processing applications, including stainless steel drilling

Step drill design with 15 size options for flexible hole diameters ranging from 4mm to 32mm (sizes include Φ4mm, Φ6mm, Φ8mm, Φ10mm, Φ12mm, Φ14mm, Φ16mm, Φ18mm, Φ20mm, Φ22mm, Φ24mm, Φ26mm, Φ28mm, Φ30mm, Φ32mm)

Reinforced shank for increased durability and reduced risk of breakage

Easy identification with platinum color ring marking for quick diameter recognition

Tested durability with over 800 holes drilled without loss of performance

M35 high hardness nitrided steel material for efficient cutting ("cuts iron like mud")

1. For hole diameters above 20mm, use an electric screwdriver with torque overload protection to safeguard the drill bit.

2. For material thickness less than 1mm, a handheld electric drill is suitable; for thicker materials, a bench drill is recommended.

3. In case of drill jamming or difficulty, use higher power equipment with light pressure and slow speed.