Product Name

HSS Step Drill Bit

Material

M35(cobalt 5%), HSS M2, HSS

Process

Fully Gorund

Size

1/8-1/2", 3/16-1/2", 3/16-7/8", 1/4-3/4", 1/4-1 3/8"

Shank Type

Three Flats Shank (Quick Change Hex Shank, Round Shank, Double R Shank are Available)

Surface Finish

Black & Amber (Titanium, Bright, Co-coated, Black Oxide, Black & Bright, TiAIN are Available)

Package

5Pcs With Aluminum Case/Opp bag

Features

5 piece step drill bits set replaces 50 individual drill bits which saves you a lot of trouble and space,Two-flute design gives you faster, smoother cutting. Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck.

1. This is a new type of HSS 4241 steel large step taper drill cobalt coated to reduce friction and run cooler
2. Cobalt steel with titanium coating ensures the bits have exceptional durability and will stay sharp for many years.
3. It is very suitable for cutting holes in various materials, including carbon steel, brass, wood, plastic, etc.
4. The bits come supplied in an organized aluminum case for easy storage and transport.