Drillco® Combined Centre Drill & Countersink, #7, 1/4" Small Diameter, 5/8" Large Diameter, High Speed Steel Pneumatic Oil Pumps Includes: 1 (114340) Ring back-up

Includes: 1 (114340) Ring back-up PTFE

small lathes using water soluble or light cutting oil

Can hold most Milwaukee meters

Ideal for use with threading machines

Drillco® Combined Centre Drill & Countersink, #7, 1/4" Small Diameter, 5/8" Large Diameter, High Speed Steel Pneumatic Oil Pumps Includes: 1 (114340) Ring back-upWhen 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 #7 Small Diameter 1 4" Decimal Size 0. 25" Large Diameter 5 8" Countersink Angle 60 Overall Length 6" Finish Bright Type Plain Country Of Origin China