Набор сверл с шестигранным хвостовиком для металла Spiral Grooved Step из высокоскоростной стали добавлением кобальта и титана диаметр от 3 до 12 мм 1/4 дюйма - купить

Купить Сверло с шестигранным хвостовиком Spiral Grooved Step HSS Co Cobalt Titanium Drill Bits Hole Cutter 1/4 Hex Shank Metal Cone Drilling 3-12mm Saw M35 Set on.

Unavailable in 

100% brand new and high quality.
Made from HSS-Co, heat treatment to it, high hardness, high wear resistance, high toughness, high bending strength, sharp edge, the best choice for processing stainless steel, better than ordinary step drill.
Unique step structure, a drill can punch out a variety diameters of holes.
Does not need center punch to assist it, compared with ordinary hemp flower drill, it is stabler and difficult to be broken.
It has these functions that hemp flower drill does not have, such as burrs removing, chamfering, punching elliptic hole, etc.
It is suitable for being installed on the pistol drill and bench drill, applicable for punching on these harder workpieces, such as stainless steel, carbon steel, aluminum plate, iron plate, etc.

Note
Please water it for cooling while punching so that can prolong its lifetime,
rotation rate from 250 to 400 is recommended.

Specifications
Material:HSS-Co
Handle type:Hex handle  
Handle diameter:1/4" Hex
Step quantity:10 steps  
Handle length:30mm  
Edge length :50mm
Step diameter: 4/6/8/10/12/14/16/18/20/22 mm

Package Included:

1pc HSS-Co Straight Slot Hex Handle Step Drill