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Steel, metalholeopener, powertoolaccessorie, hsstitaniumcoatingstepcone
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Customer Reviews

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Joined 2015
It’s awesome the shipping time was fast. The product was exactly what I thought it was and more.
about 6 months ago
Joined 2019
Not used them yet but they do look a good quality
about 4 months ago
Joined 2019
Have already used them and they work great.
about a month ago
Joined 2018
Exactly as expected..great
about a month ago


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Made of high quality HSS steel! It is ideal for cutting holes in various materials, including steel, brass, wood, plastic, etc. 3-piece Hss drill bit set, high-quality tools suitable for various sizes of work. Titanium plated to reduce friction and heat. After heat treatment and highly polished. Perfectly drill round holes in steel, brass, plastic, wood, etc. 3 side handle design to prevent slipping when chuck. The two groove design can cut each step faster, smoother and cleaner, and clearly mark the depth diameter of the step. feature: 1. There are three sizes of drill bits: 4-32mm, 4-20mm, and 4-12mm. 2. Suitable for cutting holes in various materials, including steel, bronze, aluminum, etc. 3. HSS step cone titanium-plated punching knife, made of HSS steel, is hard, wear-resistant and durable. 4. The surface is coated with titanium to reduce friction and heat, which is not easy to break compared with ordinary drills. 5. It is firmly installed in the power tool chuck, which eliminates slippage, removes chips faster, and makes particles easy to escape. Material: high speed steel Color: golden Surface treatment: Titanium plating Size (approx.): Length 4-12mm: Appox. 6.3 cm / 2.48 inches Length 4-20mm: Appox. 7.3 cm / 2.87 inches Length: 4-32mm: Appox. 10 cm / 3.94 inches Step drill cutting specifications: 4-12mm hole size in 2-12 steps (5 steps) 4-20mm hole size in 2mm steps (9 steps) 4-32mm aperture, with 2mm steps (15 steps) Note: Water injection during work can effectively extend the life of the drill. The recommended drilling speed is 250-400 rpm. The package includes: 1 *Storage bag 1 * 3pcs drill bit set (1 x 4-12mm Hss drill bit+1 x 4-20mm Hss drill bit+1 x 4-32mm Hss drill bit)

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3 PCS Steel Step Drill Bit Hss Titanium Coated Step Cone Metal Hole Cutter Metal Hex Tapered Drill Power Tools Accessories 4-12/20/32 mm

(211 reviews)
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1ps (4-20mm)
1ps (4-32mm)
3pcs(4-12mm, 4-20mm, 4-32mm)
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