Drillco® Combined Centre Drill & Countersink, #7, 1/4" Small Diameter, 5/8" Large Diameter, High Speed Steel Pneumatic Oil Pumps Includes: Dust bad

Includes: Dust bad

Optimized weight for maximum balance and control

Ideal for use with threading machines

Includes: 1 (114340) Ring back-up PTFE

Not recommended for joints that require gap filling

Drillco® Combined Centre Drill & Countersink, #7, 1/4" Small Diameter, 5/8" Large Diameter, High Speed Steel Pneumatic Oil Pumps Includes: Dust badWhen 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