3pcs/set Step Drill Set 3-12mm 4-12mm 4-20mm Straight Fluted Step Drill Bits Titanium Coated Wood Metal Hole Cutter Drilling

Supplier: Huizhou Meixiu Technology Co., Ltd.
Region: Guangdong, China
Contact: Mr huang Tim
Price: $2.50 / 1 - 99 sets
$2.30 / 100 - 199 sets
$2.20 / >=200 sets
Min. Order: 1 set

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Product details

Customization support:	OEM production	Single package size:	20X15X5 cm
Drilling type:	Metric counterbore	Surface treatment:	Titanium plating
Sales unit:	single product	Packaging Details:	carton or opp bag
Gross weight per piece:	0.100 kg

Product Description

Specification

Features: 100% brand new and high quality Made of high quality HSS steel Ideal for cutting holes in a variety of materials including steel, brass, wood, plastic and more. Titanium coating for mit reduction and heat treatment heat treated and highly polished. Drill perfectly round holes in steel, brass, plastic, wood and more. 3-side shank design to prevent slipping in the chuck Two groove designs drive faster, smoother and cleaner cuts Each step is clearly marked with depth-diameter steps

Function:

Supporting tools for deburring, chamfering, cutting or reaming: pistol drill, hand drill, electric drill, bench drill. (Water injection cooling while working can effectively prolong the service life of the drill bit, especially in the case of continuous drilling) Speed: 4-12 Speed: 260-400 4-20 Speed: 180-240

attention:

As the outer diameter of each step of the step drill gradually expands, the corresponding cutting resistance and linear speed will also gradually increase. Since the step drill completely relies on the beveled edge with a length of only 1mm, if the feed rate is too fast during drilling, it is easy to anneal due to the wear of the beveled edge. Please press down hard when drilling, don't press down hard, so as not to fray the edge.

Applicable materials: wood, plastic, PVC board, iron plate and other workpieces with general hardness, and the thickness of the board is within 3MM. Note that stainless steel and spring steel are not suitable. Not for quenching. Length: 3-12mm Length: Approx. 7.9cm/ 3.11" 4-12mm Length: Approx. 6.7cm/ 2.64" 4-20mm Length: Approx. 7.4cm/2.91in knives come in the following sizes: 3-12mm (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm) 10 steps 4-12 mm: (4mm, 6mm, 8mm, 10mm, 12mm) 5 steps 4-20mm: ( 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) 9 steps Package includes: 1 x drill bit 3 -12mm 1 x drill bit 4-12mm 1 x drill bit 4-20mm 1x bag

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