About this item

• SPECIFICATIONS:21pcs M2 drill bits set for Stainless Steel , include 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8 with Triangle shank.
• GOLDEN RATIO TIP:From size 5/32" with patented "Golden Ratio" Tip,which especially designed for heavy duty purpose, effect clean&smooth holes on hard metal like stainless steel,,and moreover, at least 3 times longer life.
• FUNCTIONAL TITANIUM COATING:dIfferent from normal Titanium coating , this functional industry titanium coating significantly increases the ware-resistance and durability, the coating will never fall away during drilling.
• NEW STORAGE BOX:Trsparent PC box,strong enough to stand adult on it,not easy to broke by dropping on floor,also not easy to get scratches during using.
• HOW TO USE:especially for hard stainless steel, controling the drill speed by low RPM would make drill life much longer than 3 times.