[Round 1pcs 4 39mm]

Professional and durable professional tool for industrial applications
Note: Professional need to use it. Irrelevant personnel are strictly prohibited from their approach while working.
Features:
Brand New 100% New Quality
Made of high quality HSS steel
Ideal for drilling holes in a variety of materials including steel, brass, wood, plastic, etc.
HSS Step Drill Bit: 0.2 - 1.5 inches (4 - 39 mm)
Product Material: High Speed Steel 4241
Round Handle Diameter: 0.4 inches (10 mm)
Product Length: Approx. 4.2 inches (107 mm).
Product Weight: 9.8 oz (254 g).
Product Packaging: OPP plastic bag
Cutter comes in following sizes:
4mm, 6mm, 9mm, 12mm, 15mm, 18mm, 21mm, 24mm, 27mm, 30mm, 33mm, 36mm, 39mm-13 Steps
Product Packaging: OPP plastic bag
Suitable for projects with a hardness of less than 25°, such as wood, thin steel, copper, aluminum, plastic, etc. )
For many of you who need to drill hardened steel, stainless steel and other high hardness materials, we recommend using 6542 bits!
Function: Deburry, Chamfering, Cutting or Expansion Hole
Support tools: pistol drill, hand drill, charging drill, bench drill (It can effectively expand the service life of the drill bit, especially in the case of continuous drilling)
Note: The outer diameter of each step of the step drill is gradually enlarged, so the corresponding cutting resistance and line speed will be increased.
Because of the step drill, it is fully dependent on the inclined end of only 1mm long, so if the feed speed is too fast during drilling, it is easy to annealed caused by wear on the beveled edges.
Apply downward force when drilling Do not overly hard, avoid wearing the edges.
Suitable Material: Wood, plastic, PVC plate, iron plate thickness within 0.1 inch (3 mm) Stainless steel and spring steel cannot be applied. Not intended for sudden cooling.
Package includes:
1 x 0.2 - 1.5 inches (4 - 39 mm) step drill b