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Zzanggu Titanium Step Drill Bit, High Speed Steel 3/16” to 7/8”(12 Step Sizes) Drill Holes for Plastic, Aluminum, Copper
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*Packaging of actual item may differ from photo shown
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About Zzanggu Titanium Step Drill Bit, High Speed Steel
Zzanggu Titanium Step Drill Bit, High Speed Steel 3/16 - 7/8 Inch, Total 12 Step Sizes Features: [Size] 3/16 - 7/8 Inch(12 Steps) [Materials] High Speed Steel(H.S.S) with titanium coating for strength and longevity [Advantage] 1.TRI-FLATTED SHANK: fits into power tools chuck securely and eliminates slip, offer a stronger, better grip on a standard drill chuck. 2.Deburring, chamfering, and reaming hole without wasting time by changing drill bits 3.Smooth: 2-flute design for smoother cutting; 3 flat side cutouts for a stronger, better grip on a standard drill chuck. [Packaging includes] 3/16 - 7/8 Inch Step Drill Bit x1 [Note] The step drill bit can be water-cooled during operation, which can effectively extend the service life of the drill bit. The recommended drilling speed is 250--400 rpm
