Using the high-precision center drill and spot drill to achieve better drill and tap tool life is definitely the best choice to save costs and machining time:
Time-saving: When machining with a drill or tap, the tool can easily break if it is not accurately positioned, and it would take lots of time to remove the broken drill and tap. By using a precise center /spot drill can solve this problem immediately.
Cost-saving: The accurate center positioning center drill and spot drill improve the tool life of the drill and tap significantly by giving a precise center spot, it reduces the amount of tool used.
The YIH TROUN full series of indexable spot drills and center drills use fully ground carbide insert, which need to be replaced only when worn out but without the needs to replace the shanks. There are also a variety of long and short shanks that are interchangeable. The inserts are made of different grades in different angles and sizes:
Spot Drill: 90° / 90 + 142° / 142°
Center Drill: 60° / 60 + 120° / 90°
Spot Drill
Also known as positioning drills, a dedicated spot drill to milling machines. The two cutting edges are designed on balanced positions to decrease the high feed rotating runout and secure ultimate positioning
Center Drill
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Indexable Engraving Tool
Y.T. indexable engraving tool offers you an accurate engraving solution on CNC machine. Patented double clamping 390 system and unique positive insert geometry design in 60° ensure you a precise and slim