Indexable Counter Bore Series

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

Based in Taiwan, YIH TROUN ENTERPRISE CO., LTD., since 1977, is a Indexable Counter Bore Series | 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.

Indexable Counter Bore Series

Counter Bore Series
Counter Bore Series

Indexable counter bore used in hex socket head cap screw.

COUNTER BORE Screw

Some users still use traditional solid cutting tool on the market for machining of counterbore holes. However, their tool life and efficiency are not good enough, and therefore, we introduce counter bore tool with carbide insert design. Indexable carbide insert is not only easily replaceable, but the insert made of carbide also has better life and machining performance. Fully grinded insert of E grade has not only smaller tolerance, but also has 4 cutting edges to reduce your tool cost and increase your competitiveness in obtaining orders. Insert SDET06 and SDET09 have respectively two different carbide grades for the machining of material such as steel / stainless steel / super alloy / cast iron, etc. Dimension of entire series is from M8 - M36.

Besides, in order to respond accordingly to hex socket head cap screw of small sizes, we have also 4-in-1 counter bore with the 390-design structure. From the smallest counter bore dimension M3 on, a single insert will shorten many processes into 2 processes to finish the work. Only 3 seconds are needed for you to complete one work piece.

  • 4-1 Counter Bore - Indexable 4-1 Counter Bore
    4-1 Counter Bore

    4-in-1 counter bore patented by YIH TROUN reduces 5 machining processes into two processes.Traditional machining of counter bore holes needs preparation of several cutting tools. It leads to longer machining time and tool cost. Tool replacement time alone occupies over 1/3 of total machining time.


  • Counter Bore - Indexable Counter Bore
    Counter Bore

    YIH TROUN developed indexable counter bore with indexbale carbide insert design reduces not only the tool cost by having 4 edges on the insert but meanwhile it increases the machining efficiency by the great performance from carbide insert. All series counter bores are: 1. Exclusively used in Drilling Machine: CBK / HBM Series 2. Exclusively used in CNC Machine: CBI SeriesCounter bore CBK which is exclusively used for drilling machine uses patented carbide stripe of YIH TROUN. It solves the issue which front guiding head is easily worn out due to collision inside of hole during machining process. The strength of holder made of pre-harden steel grade is even better and the holder is also equipped with screws as well as wrench imported from Swiss. It comprehensively raises cutting tool and insert life