• Model NO.：SED-SF-BA
• Content：3mm-20mm
• Set：5PCS,Set
• Package：Aluminium Box
• Min Qty：200sets
• Surface Treatment：Black and Amber
• Transport Package：Aluminium Box
• Specification：5pcs,set
• Trademark：EASYDRILL
• Origin：China
• HS Code：8207500
• Production Capacity：20000sets,Month

Procuct Name

5Pcs Three Flats Shank Straight Flute HSS Step Drill Bit for Multiple Hole in Aluminum Case

Sizes1/8-1/2", 3/16-1/2", 3/16-7/8", 1/4-3/4", 1/4-1 3/8"   (Metric Size is Available)MaterialHSS    (Cobalt M35 is Available)Flute TypeStraight Flute   (Spiral Flute is Available)Flute NumberTwo Flutes   (Single Flute, Three Flutes are Available)Shank Three Flats Shank   (Quick Change Hex Shank, Round Shank, Double R Shank are Available)Surface FinishBlack & Amber   (TiN, Bright, Co-coated, Black Oxide, Black & Bright, TiAIN are Available)Package5Pcs in Aluminum Case   Features

1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm.

2. 135° Split Point Tip: increases cutting speed with self-centering and the drills do not run off center.

3. A variety of hole diameters can be drilled using only one tool. 

4. The dimension of drilled hole is exact. 

5. Two Flute Design: provides longer life and better chip removal.

6. Only for rotary use.