Drillco® Combined Centre Drill & Countersink, #18, 5/16" Small Diameter, 3/4" Large Diameter, High Speed Steel First Aid / Fire Protection What’s in the box

What’s in the box

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MFC-9010CN

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Drillco® Combined Centre Drill & Countersink, #18, 5/16" Small Diameter, 3/4" Large Diameter, High Speed Steel First Aid / Fire Protection What’s in the boxWhen metal parts are machined on centres as in turning or cylindrical grinding, it is always necessary to drill and countersink the centre holes to serve as seats or bearings in the machine centres Specifications Material High Speed Steel Number Size #18 Small Diameter 5 16" Decimal Size 0. 3125" Large Diameter 3 4" Countersink Angle 60 Overall Length 3 1 2" Finish Bright Type Bell Country Of Origin China