Drillco® Combined Centre Drill & Countersink, #8, 5/16" Small Diameter, 3/4" Large Diameter, High Speed SteelWhen 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 #8 Small Diameter 5 16" Decimal Size 0. 3125" Large Diameter 3 4" Countersink Angle 60 Overall Length 6" Finish Bright Type Plain Country Of Origin China

gases and steam

Optimized size design for working in compact spaces

Integrated carry handle with ergonomic grip

For Use With Precision Hammer Only

Tightly knotted for maximum impact and long brush life

jeweled movement

The pad is PSA soft

Knurled handle allows for a safe and secure hold

without undercutting

U-bar model includes two flanged washers (TN125) and accommodates 5/16" spindle (not supplied)

methylene chloride

Best for use on 1/2" - 2" drain lines