These high speed step drill bits feature a titanium nitride coating so they run cool and are made out of high speed steel for a long service life. The drill bits automatically deburr holes as you drill and the two-flute design provides faster, smoother cutting. Whether drilling in plastic, metal or wood, these drill bits cut great every time.Specifications
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- Cool-running titanium nitride coating
- High speed steel for long life
- Automatically deburrs holes as you drill
- Two-flute design gives you faster, smoother cutting
- Quick-change 1/4″ hex shank
- Name SKU Brand Shank length (in.) Size(s)2 Piece Titanium Nitride Coated High Speed Steel Step Drill BitsSKU#40434 Shank length: 25/32″3/16 in. to 7/8 in. Twelve Step Bit: 3/16 in., 1/4 in., 5/16 in., 3/8 in., 7/16 in., 1 /2 in., 9/16 in., 5/8 in., 11/16 in., 3/4 in., 13/16 in., 7/8 in.; 1/4 in. to 1-3/8 in. Eleven Step Bit: 1/4 in., 25/64 in., 35/64 in., 1 1/16 in., 13/16 in., 7/8 in., 1 in., 1-1/8 in., 1-7/32 in., 1-1/4 in., 1-3/8 in.