Specialize in industrial tools and machine tool accessories since 1993

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If one is a fan of using a projector for viewing the movie and want to enjoy his or her classical movie collection, then they will definitely need this product. The product is highly corrosion-resistant, making it suitable for the demanding mechanical environment
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Company Advantages
1. PRECO is produced strictly according to the standards in furniture manufacturing. The product has been tested officially and passed the domestic certifications of CQC, CTC, QB. It can withstand the heat generated during the machine working process
2. If one is a fan of using a projector for viewing the movie and want to enjoy his or her classical movie collection, then they will definitely need this product. The product is highly corrosion-resistant, making it suitable for the demanding mechanical environment
3. This product is the protector of the item. It effectively protects the item from physical shocks such as impact, wetting and bruising. The product is distinguished for precision registration

Product Information

                                                                  Carbide Tipped Boring Bars and Sets
C2-For Caston IronC6-For Steel




    C2C6C2C6
Shank Dia.LengthBore DepthMin.boreIndividualSet
3/8''2''3/4''5/16''375-1012375-10169pcs/set9pcs/set
2-3/8''1-1/8''5/16''375-1022375-1026375-1002375-1006
2-3/4''1-1/2''5/16''375-1032375-1036  
2-3/16''15-16''3/8''375-1042375-1046  
2-21/32''1-13/32''3/8''375-1052375-1056  
3-1/8''1-7/8''3/8''375-1062375-1066  
2-3/8''1-1/8''7/16''375-1072375-1076  
3-15/16''1-11/16''7/16''375-1082375-1086  
3-1/2''2-1/4''7/16''375-1092375-1096  
1/2''2-1/4''3/4''5/16''375-1212375-12169pcs/set9pcs/set
2-5/8''1-1/8''5/16''375-1222375-1226375-1202375-1206
3''1-1/2''5/16''375-1232375-1236  
2-5/8''1-1/8''7/16''375-1242375-1246  
3-3/16''1-11/16''7/16''375-1252375-1256  
3-3/4''2-1/4''7/16''375-1262375-1266  
3''1-1/2''9/16''375-1272375-1276  
3-3/4''2-1/4''9/16''375-1282375-1286  
4-1/2''3''9/16''375-1292375-1296  
5/8''2-1/4''3/4''5/16''375-1412375-141612pcs/set12pcs/set
2-5/8''1-1/8''5/16''375-1422375-1426375-1402375-1406
3''1-1/2''5/16''375-1432375-1436  
2-5/8''1-1/8''7/16''375-1442375-1446  
3-3/16''1-11/16''7/16''375-1452375-1456  
3-3/4''2-1/4''7/16''375-1462375-1466  
3''1-1/2''9/16''375-1472375-1476  
3-3/4''2-1/4''9/16''375-1482375-1486  
4-1/2''3''9/16''375-1492375-1496  
3-3/8''1-//8''11/16''375-1502375-1506  
4-5/16''2-13/16''11/16''375-1512375-1516  
5-1/4''3-3/4''11/16''375-1522375-1526  
3/4''3-1/8''1-1/8''7/16''375-1612375-161612pcs/set12pcs/set
3-11/16''1-11/16''7/16''375-1622375-1626375-1602375-1604
4-1/4''2-1/4''7/16''375-1632375-1636  
3-1/2''1-1/2''9/16''375-1642375-1646  
4-1/4''2-1/4''9/16''375-1652375-1656  
5''3''9/16''375-1662375-1666  
3-7/8''1-//8''11/16''375-1672375-1676  
4-13/16''2-13/16''11/16''375-1682375-1686  
5-3/4''3-3/4''11/16''375-1692375-1696  
4-1/4''2-1/4''13/16''375-1702375-1706  
5-3/8''3-3/8''13/16''375-1712375-1716  
6-1/2''4-1/2''13/16''375-1722375-1726  
1''5''3''9-16''375-1812375-18167pcs/set7pcs/set
5-3/4''3-3/4''11/16''375-1822375-1826375-1802375-1806
6-1/2''4-1/2''7/8''375-1832375-1836  
6-1/2''4-1/2''1-1/16''375-1842375-1846  
7-3/4''5-3/4''1-1/4''375-1852375-1856  
8-1/4''6-1/4''1-1/2''375-1862375-1866  
9-1/2''7-1/2''1-5/8''375-1872375-1876  








K20-For Caston IronP20-For Steel




    K20P20K20P20
Shank Dia.LengthBore DepthMin.boreIndividualSet
10mm50.8mm19mm7.9mm375-3012375-30169pcs/set9pcs/set
60.3mm28.5mm7.9mm375-3022375-3026375-3002375-3006
69.8mm38.1mm7.9mm375-3032375-3036  
55.5mm23.8mm9.5mm375-3042375-3046  
67.46mm35.71mm9.5mm375-3052375-3056  
79.3mm47.6mm9.5mm375-3062375-3066  
60.3mm28.5mm11.1mm375-3072375-3076  
100mm42.8mm11.1mm375-3082375-3086  
88.9mm57.1mm11.1mm375-3092375-3096  
12mm57.1mm19mm7.9mm375-3212375-32169pcs/set9pcs/set
66.6mm28.5mm7.9mm375-3222375-3226375-3202375-3206
76.2mm38.1mm7.9mm375-3232375-3236  
66.6mm28.5mm11.1mm375-3242375-3246  
80.9mm42.8mm11.1mm375-3252375-3256  
95.2mm57.15mm11.1mm375-3262375-3266  
76.2mm38.1mm13mm375-3272375-3276  
95.2mm57.1mm13mm375-3282375-3286  
114.3mm76.2mm13mm375-3292375-3296  
16mm57.1mm19mm7.9mm375-3412375-341612pcs/set12pcs/set
66.6mm28.5mm7.9mm375-3422375-3426375-3402375-3406
76.2mm38.1mm7.9mm375-3432375-3436  
66.6mm28.5mm11.1mm375-3442375-3446  
80.9mm42.8mm11.1mm375-3452375-3456  
95.2mm57.15mm11.1mm375-3462375-3466  
76.2mm38.1mm14.2mm375-3472375-3476  
95.2mm57.1mm14.2mm375-3482375-3486  
114.3mm76.2mm14.2mm375-3492375-3496  
85.7mm47.6mm17mm375-3502375-3506  
109.5mm71.4mm17mm375-3512375-3516  
133.3mm95.2mm17mm375-3522375-3526  
20mm79.3mm28.5mm11.1mm375-3612375-361612pcs/set12pcs/set
93.6mm42.8mm11.1mm375-3622375-3626375-3602375-3606
107.9mm57.1mm11.1mm375-3632375-3636  
88.9mm38.1mm14.2mm375-3642375-3646  
107.9mm57.1mm14.2mm375-3652375-3656  
127mm76.2mm14.2mm375-3662375-3666  
98.4mm47.6mm17.4mm375-3672375-3676  
122.2mm71.4mm17.4mm375-3682375-3686  
146mm95.2mm17.4mm375-3692375-3696  
107.9mm57.1mm20.6mm375-3702375-3706  
136.5mm85.7mm20.6mm375-3712375-3716  
165.1mm114.3mm20.6mm375-3722375-3726  



Features.
  •   Up to 100% longer tool life.

  • ◪  Used on ferrous and non-ferrous metals.

  • ◪  All shanks are ground tp +0-0.005''/+0-0.01mm.

  • ◪  The same bar can bore flat bottom hole or face. Grind bar on cutting end for special tools, such as grooving,threading or automatic operations. 


Applications


                Used to enlarge or finish the inside diameter of the workpieces. 


Product Message



Company Features
1. Since its inception, Qingdao preco imp. & exp. co., ltd. has been developing rapidly.
2. machine tools manufacturers is assembled by our highly skilled professionals.
3. We put people front and center. We constantly promote the safety, education, and well-being of our employees through a multitude of programs.
PRECO machine tools manufacturers is made by conducting stringent quality checks throughout the production process to ensure compliance with the specifications of the tent industry. It proves to support the explosion-proof operation
PRECO machine tools manufacturers undergoes a series of production processes that involve the cutting of metal materials, stamping, welding, and polishing, and surface treatment. The product has undergone coating to have a glossy surface
The purifying system of PRECO machine tools manufacturers has been built using standardized 'building block' methods, allowing for quick delivery and installation.
The assembly of PRECO machine tools manufacturers must be conducted often within cleanroom environments or aseptic conditions to meet the requirements of biocompatibility. It is easy to install and operate
The production of PRECO machine tools manufacturers is of a high standard. It meets the building industry's critical standards and regulations such as the latest safety science and environmental protection certifications. It proves to support the explosion-proof operation
The product features long-term rust resistance. Processed by advanced oxidation, it has a metallic membrane on the surface to optimize its resistant performance. The product is notable for excellent resistance to acid and alkali properties
The product features high CRI. Its light is naturally close to the sun's, dramatically improves the appearance of an object. It will not react with gas, oil, or other substances
The product features proper stability. It is achieved with cushioning, medial support and with a semi-curved or curved last: it supports foot movement. It provides a wide measuring range of temperatures
The product features a lighter design. It is lighter as compared to other rechargeable batteries considering the battery capacity. The product is well received by customers from Europe and South America
The product is user-friendly. The wood materials used in it is smooth to touch and its design is timeless, safe and fashion. The product has wide application fields, like the power industry, petrochemical industry and metallurgical industry
The product has no impurities, dark spots, or scratches on the surface. The polishing process has removed all of this imperfections. It is water-resistant and rust-resistant
Over the years, the product continues to upgrade and get the praise of the majority of users. The product is found to be compliant with the requirements of CE
This product shows great practicality and promotion value. The product will not deform under the impacts caused by temperature change
The product has a considerable influence on the customers for its wide range of application prospects. The product has a good shock resistance
Owing to its excellent characteristics, the product has been regarded as the most reliable product by its customers. The product is well received by customers from Europe and South America
The product offered by PRECO has received much reputation in the industry. It can be used to measure the surface temperature of liquids, gases, and solids
The product is widely recognized by customers with the help of efficient sales network. The product has undergone coating to have a glossy surface
Product Message
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