3PC Tin-coated HSS Step Drill Bits Set in Rose plastic box

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Article NO. B0160103

3PC Tin-coated HSS Step Drill Bits Set in Rose plastic box

Contains: 4-12, 4-20, 6-30mm

Feature:

Made of high speed steel, right hand cutting, cylindrical shank, with split-point.

A single bit can be used for drilling a wide range of hole sizes, or for hole enlarging

Titanium nitride (TiN) coating improves lifetime

Application:

Step bits are most commonly used in general construction and plumbing.

One step bit can drill the entire range of holes necessary on a countertop, speeding up installation of fixtures.

They are most commonly used on softer materials - plywood, particle board, drywall, acrylic, laminate, etc.

They also can be used on very thin sheet metal, but metals tend to cause premature drill wear and dulling.

An additional use of step bits is deburring holes left by other bits, as the sharp increase to the next step size allows the cutting edge to scrape burrs off the entry surface of the workpiece.