Drillco® Combined Centre Drill & Countersink, #2, 5/16" Small Diameter, 3/16" Large Diameter, High Speed Steel Wearing Williams Part#: W11224256

Part#: W11224256

functional

Pass-thru leg and chest closures

Expand We’ve personally used it at −30°C

Drillco® Combined Centre Drill & Countersink, #2, 5/16" Small Diameter, 3/16" Large Diameter, High Speed Steel Wearing Williams Part#: W11224256When 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 #2 Small Diameter 5 16" Decimal Size 0. 3125" Large Diameter 3 16" Countersink Angle 60 Overall Length 6" Finish Bright Type Plain Country Of Origin China