Feature(may vary by option.)
●Ideal for drilling holes in a variety of materials including steel, brass, wood, plastic, etc
●Titanium Coated to Reduce Mitts and Heat
●Heat treated and highly polished. Dig into perfectly round holes in steel, brass, plastic, wood, etc
●Three side shank design to prevent slipping during chuck
●Two flute design drives are faster, smoother and cleaner trimming each step is labeled clearly with depth diameter gradually
[4-12]
[3-12]
[4-20]
Description
Features:
Made of high quality HSS steel
Brand New 100% New Quality
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 water injected cooling, especially for continuous drilling.
Rotation Speed:
3-12 Speed: 260-400
4-12 Speed: 260-400
4-20 Speed: 180-240
Note: Due to the outer diameter of each step of the step drill, it will gradually expand and increase the corresponding cutting resistance and linear speed. Gradually increases.
It is fully dependent on the inclined end only 1mm in length for step drills. It will be easier if the feed speed is too fast when drilling. Annealing caused by wear at beveled edges.
Apply downward force when drilling Do not overly hard, avoid wearing the edges.
Suitable Material: Wood, plastic, PVC plate, iron plate, board thickness within 0.1 inch (3 mm) Be careful with stainless steel and spring steel is not applied. Not intended for sudden cooling. (It can effectively expand the service life of the drill bit, especially in the case of continuous drilling)
Length:
3-12mm Length: Approx. 3.11 inches (7.9 cm)
Length: Approx. 2.64 inches (4 - 12 mm).
Length: Approx. 2.91 inches (4 - 20 mm).
Cutter comes in following sizes:
10 steps 3-12mm (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)
4-12mm: 5 steps (4mm, 6mm, 8mm, 10mm, 12mm)
4-20mm: (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) 9 Steps
Package includes:
1 x Drill Bit 0.1 - 0.5 inches (3 - 12 mm) / 1 x Drill Bit 0.16 - 0.57 inches (4 - 12 mm) / 1 x Drill Bit 0.16 - 0.8 inches (4 -