EZARC Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8"-7/8"(3pcs) Wear-Resistant AlTiN Coated, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic MORINBO Size: Plz refer to last

Size: Plz refer to last pic

Improved Grip: rough grip offers enhanced grip in wet and dry environments

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EZARC Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8"-7/8"(3pcs) Wear-Resistant AlTiN Coated, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic MORINBO Size: Plz refer to lastAbout this item C Profile DesignEZARC step drill bits feature a triple flute design for increased stability, effectively reducing deviation during the cutting process. Additionally, the 'C profile' cutting edge ensures smoother cutting and an increased cutting speed M35 HSS Step DrillM35 cobalt high speed steel, through heat treatment, achieves toughness and bending strength that surpass standard high speed steel, making this step drill bit more