How to reduce the machining cost in hole making

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40 Years Indexable Milling Cutters Manufacturer | Y.T. / YT / YIH TROUN

Based in Taiwan, YIH TROUN ENTERPRISE CO., LTD., since 1977, is an indexable cutting tool manufacturer that has over 4500 standard indexable cutters and 30 patented designs. Focusing on developing highly efficient Indexable Tools to reduce cost and reach maximum productivity.

Y.T. / YT / YIH TROUN is the only company in Taiwan to manufacture indexable shank holder together with unique core technology for carbide insert sintering and grinding. Precision slotting, slitting and cutting tools, including indexable saw blades, side and milling cutters and transformer t-slot cutters.

Y.T. has been focusing on developing indexable cutting tools to meet the challenges of machining industry to increase efficiency and reduce cost. Y.T. indexable tools have been developed to enhance the performance of the machine to help the manufacturer's production competitiveness. With easy to clean, heat resistance and high quality indexable high speed cutter and indexable taps, in addition to 40 years of experience, Y.T. / YT / YIH TROUN ensures each customer's demands are met.

How to reduce the machining cost in hole making

In these days of recession, it is hard for many customers to get orders or profitable orders. Many of users try to find the cheap HSS tools to reduce the tool cost even though they understood the toollife and performance are poor. But if you calculate with more details together with performance and cost, you will notice cheap tools doesn’t really save the cost instead you pay even more.

Usually, spot drill is used in Pre-drilling which makes a spot to bring drill in a right and precise position. The more precise the spot drill, the more accurate the pre-hole, which reduce the risk of drill wear-out and tap breakage problem. In general, people try to avoid the possibility of tap breakage in machining, because tapping is usually the last process of the work. Once the tap breaks, it takes time to remove the broken tap, and it may cause the risk of entire workpiece to be scrapped. A customer from Y.T. used to use the indexable spot drill from other brand, but because of the eccentric is too big which cannot effectively play the role of spot drill, on average, a batch of workpieces will break about 7 to 9 taps. After using our precise spot drill, an average batch of workpieces break 1 to 2 taps. The overall calculation of an indexable spot drill with a precise eccentricity can reduce the risk of drill wear and tap breakage, greatly reducing your tool costs and increasing machining efficiency.


The following is a video of a customer's actual job. Even when making HRC42 harden steel, even if it is used on an unstable drilling machine, Y.T. carbide insert is still intact with good stability and speed. For the spot drill which is not accurate it has already brought chattering under this condition, it is impossible to drill deeper or faster and the workpiece are not possible by just holding by hand. Check the video https://www.youtube.com/watch?v=UrTM8c6Euss


Y.T. indexbale spot drill insert are fully grinded which is made by the carbide powder imported from USA. An actual test result from customer in machining stainless steel can reach more than 10,000 holes, with full depth it can reach 2,000 holes in stainless steel, video: https://www.youtube.com/watch?v=7r55lAGY1ys


In addition, there are 3 different angles for spot drill insert: 90° / 142° / 90° + 142°. The 90° spot drill is a multi-function application. In addition to spot, it can also be used for various functions such as chamfering / engraving / V-grooving.


Economical indexable spot drill, changing carbide insert is cheaper than HSS spot drill, the full range of outer diameter is 8/10/12/16 mm, variety of sizes and length are on stock to meet various demands.