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3-Piece Step Drill Bits Set HSS Steel Titanium Hole Cutting

$29.99 $19.98

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Description

3-Piece Step Drill Bits Set HSS Steel Titanium Hole Cutting

3-Piece Step Drill Bits Set HSS Steel Titanium Hole Cutting

3-Piece Step Drill Bits Set HSS Steel Titanium Hole Cutting

Increases the hardness and makes the bits last up to 4-5 times longer than ordinary drill bits Drill round holes in most metals, plastic, wood and etc Self-starting tips will not skid, no need for center punching or pilot drill Designed to auto deburr the hole cut Used on electric drills and drill presses Triangular shank will not spin inside the chuck Made by HSS with heat treatment and Titanium Nitride costing Package Inculde: Steel Case X 1 4-12mm X 1 4-20mm X 1 4-32mm X 1

This 3-piece HSS drill bit set is titanium nitride coated. There is an up to 6-fold increase in lifetime due to its titanium coating. These shank drills are suitable for all common drilling machines. The drill bits are high heat resistant and they can be stored in the practical storage box made of metal.

This durable and versatile tool will center, spot-drill, bore and debur-all in one smooth, high performance working cycle
The Step Drill spiral flute is ground from the solid hardened form, a better and sharper cutting edge is achieved-without burrs
Optimized chip flow protects the cutting edges and reduces cold weld marks, cutting performance and tool life is extended significantly
With split point, Co5 cobalt alloy, ideal for high-alloyed chromium steel such as stainless and acid resistant steel