• Model NO.：PFT021
• Manufacturing Process：Fully Ground
• Shank：Hex , Round , Triangle
• Surface Treatment：Bright, Amber, Tin-Coated
• Point Degree：135 Degree Split Point
• Application：Steel,Brass, Copper,Aluminium,Wood and Plastic Mat
• Transport Package：Single Piece Packed in Clam Shell
• Trademark：Perfect
• Origin：Jiangsu Province, China
• HS Code：8207509000
• Production Capacity：5000PCS, Per Day

Procuct NameRound Shank 3 Straight Flutes HSS Step Drill for Tube Metal Sheet DrillingSize

8.5mm, 10.5mm, 12.5mm, 14.5mm, 16.5mm, 18.5mm,

20.5mm, 23.5mm, 25.5mm, 30.5mm, 32.5mm, 38.5mm, 40.5mm

MaterialHSS   (Cobalt M35 is Available)Flute TypeStraight Flute   (Spiral Flute is Available)Flute NumberThree Flutes   (Two Flutes, Single Flute are Available)Shank Round Shank   (Three Flats Shank, Quick Change Hex Shank, Double R Shank are Available)Surface FinishBright   (TiN, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available)PackageOne Piece in Double Blister or Plastic TubeFeatures

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. The Spiral Groove: creates better, less noise, less force has to be used.

7. Only for rotary use. 

 Product Sizes: