About this item
Widely UsedPerfect Step Drill Bits suitable for drill holes in various material: within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
MaterialHSS combined with a titanium coating. More capable and sturdy. Coated by titanium,this step drill set performs well in heat,corrosion and rust resistance.
Easy DrillingTwo-Flute Design for smoother cutting. High Step design let you feel the stop and never drill bigger in mistake
SET INCLUDESBit #1 (9 steps): 4-12mm (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm,12mm); Bit #2 (9 steps): 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); Bit #3 (15 steps): 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm,30mm,32mm)
Package Included 3-Piece HSS Sprial Groove Step Drill Bit (4-12/ 4-20/ 4-32mm ) + 1 Automatic Center Punch. 1/4" Hex shaft drives are suitable for all kinds of for home DIY power drills.
FRIENDLY REMINDER
- Not compatible with hammer drill.
- It is recommended to oil the bit before every use.
- Please drill a smaller hole to make drilling smoother.
- Please do not set drilling speed too high to avoid damages to cutting edge.
- The metal material on which you want to drill should not exceed 0.18-inch in thickness.
- When inject cold water while working, can effectively extend the service life of the drill bit.
WIDE USAGE & OUR SERVICE
Usage: Suitable for use in the hardness below 25 degrees workpiece, such as iron plate, copper plate, aluminum plate, the thickness of the plate of step is 3mm and wood, PVC sheet, insulation boards with a thickness of 5mm(0.2 inch) or less). Can not be used to hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
Our Service: If you are not fully satisfied with our product for any reason, We promise you we will offer our greatest sincerity to help you solve the problem.
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| Brand |
hongniu |
| Package Dimensions |
5.71 x 3.86 x 1.3 inches; 11.36 ounces |
| Shank Type |
Hex |
| Material |
High Speed Steel |
| Surface treatment |
Titanium coating |
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MEASUREMENT
- 4-12 9 Steps (Diameter 4, 5, 6, 7, 8, 9, 10, 11,12mm)
- 4-20 9 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)
- 4-32 15 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)
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QUALITY MATERIAL
- HSS sprial step drill bits are constructed from traditional HSS combined with a titanium nitride coating to make them even more durable.
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DESIGN
- 135° X-type Split Point - Increases cutting speed with self-centering and prevents walking.
- Two-flute Design - a faster and smoother cutting, allows particles escape easily.
- Hex shank will not spin inside the chunk, compatible with different types of drill machines effectively.
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About us
Jiangsu Hongniu Automotive Parts Co., Ltd. was founded in June 2000. Located in Tangzhuang Town, the eastern suburbs of the historic and cultural city of Gaoyou, with convenient transportation. The company covers an area of 35000 square meters and currently has over 300 employees, including 70 high-level and intermediate professional and technical personnel. Registered capital of 20 million yuan, total assets of 78 million yuan, and fixed assets of 56 million yuan. Main products: Series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc. Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc. We have maintained good cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly favored by our customers with our good reputation and excellent quality.
FAQ
Q1: What is your main products?
A1: Our main sale products: series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc.
Q2: How long is your delivery time?
A2: Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.
Q3: What is your payment method?
A3: 30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 5000USD, would suggest you pay 100% inadvance to reduce the bank charges.
Q4: Can you provide a sample?
A4: Sure, Our sample is provided free of charge, but not including courier fees.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.
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