Drilling Step Drill Bit for Stainless Steel Metal 3pcs 3-12 4-12 4-20

Description:

Made from made from quality stainless steel to reduce friction and heat.
Great for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
Non-skid tip, no need for center punches.
Drill diameters etched in flute for clearly labeled with the depth diameter in steps.
Function: deburring, chamfering, cutting or expanding holes.

Size Chart:

3-12: 6.25x75mm/0.25x0.30inch
4-12:6.35x66mm/0.25x2.60inch
4-20:6.35x75.5mm/0.25x2.97inch

Package Includes:

1 Piece Step Drill Bit or 3 Pieces Step Drill Bit with Pouch(Optional)

Note:

1. Please allow slightly error due to manual measurement.
2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
3. Wish you a wonderful on-line shopping!