HSS Co Cobalt Titanium Metal Spiral Grooved Step Drill Bits Hole Cutter 1/4" Hex Shank Cone Drilling 6-24mm Saw M35 Инструменты - купить

Купить HSS Co Cobalt Titanium Metal Spiral Grooved Step Drill Bits Hole Cutter 1/4" Hex Shank Cone Drilling 6-24mm Saw M35 | Инструменты

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:11 steps  
Handle length:30mm  
Edge length :5mm
Step diameter: 6/8/10/12/13/14/16/18/20/22/24 mm

Package Included :

1pc HSS-Co Straight Slot Hex Handle Step Drill