The Halls Bradrad® Tool has the following specification:
Drill Sizes: 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 & 36mm.
Shank: 3/8in (10mm).
The Hall Bradrad® precision tools drill and deburr in material thicknesses up to 10mm. Designed for industrial applications, each step produces accurate, parallel holes with a small clearance on the nominal diameter. It positively deburrs the entry side as the hole is drilled, and if the work can be reversed, both sides.
'S’ Type Bradrad® drills are used to machine a wide variety of materials and for many different applications. No pilot drill is required, and good quality deburred holes are produced with minimum fuss using a bench drill or light pedestal drilling machine.
Each Bradrad® has eleven different drilling diameters.
When drilling metals always use a coolant.