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[출처:에이치케이툴스 ]

1-TOP BTA	1-TOP BTA	3-TOP BTA
Burnishing Drill	TOP Burnishing Drll	For Drilling/Reaming
For Drilling/Reaming	For bolt hole	For basic hole of Tap
30˚Helix,118˚Point,Solid,Inch,Long type	30 ˚ Helix,118 ˚ Point,Solid,Long type	30 ˚ Helix,118 ˚ Point, Solid, Inch type

 

30 ˚ Helix, 118 ˚ Point, Solid type	30˚Helix, 140˚Point, Solid Long type	30˚Helix, 140˚Point, Solid, Inch type
30˚Helix, 140˚Point, Solid type	SHD series(Solid High Drill) SHD series(Solid High Drill)