90 Degrees Countersink HSS Drill Bit Wood Steel Aluminum 6.3mm To 20.5 Silver 8.3mm

Quality90degreebevelknives,90-degreechamferortaperroundholeforaworkpiece

Youcancompleteconeprocessingforsmallamountofcuttingmachining



Specifications:

Shank:roundhandle

Material:HSS

Surface Technology: White Diamond

Uses:usedintheholeoftheworkpiece90degreeschamferortaper.



Size

HeadDiameterShankDiameter FullLength

6.3mm 5mm 45mm

8.3mm 6mm 50mm

10.4mm 6mm 50mm

12.4mm 8mm 55mm

16.5mm 10mm 60mm

20.5mm 10mm 65mm





Features:cancompleteconeprocessing,

Forsmallamountofcuttingmachining.

Processingefficiencyandhighlife.























a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a