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Counterbore
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Down counter sink 5 YIH TROUN ENTERPRISE CO.,LTD
Up counter sink New Procedure: Need Only 2 Tools
Standard Procedure: Need 5 Tools
Drill
Counter bore
4
1+3+4+5 2
Drill = AA • Center of bore and counter bore is synchronized.
3
Spot drill 2 1 NEW 4 in 1 counter bore 1 • Accurate spot drill, no vibration. • Just need 3 seconds.
PCT Priority No. PCT/ CN2013/086393 Durability 300% UP
COUNTER BORE
Efficiency 300% UP
Patent No. 201310453057.2 201320772697.5
Variety of Machines Milling / Drilling / Radial drilling
Patent No.
4 IN 1 M473882 M474588 M473881 Video Features Cost Available in materials 300~500% M K P DOWN H S 230 YIH TROUN ENTERPRISE CO.,LTD
