Grizzly T31990 - 33 Pc. HSS/Cobalt Silver & Deming Drill Bit Set W/ Aluminum Case Mining / Tunneling Operations 0 Specifications

0 Specifications

Motor: 1/10 HP

Reversible AC Rectified - 1/2" x 200'

Cylinder is made of alloy steel

Heavy-duty steel frame construction

Grizzly T31990 - 33 Pc. HSS/Cobalt Silver & Deming Drill Bit Set W/ Aluminum Case Mining / Tunneling Operations 0 SpecificationsT31990 33 Piece HSS Cobalt Silver & Deming Drill Bit Set W Aluminum Case Silver and Deming drill bits are large size drill bits with reduced shanks. Youll want the 33 piece T31990 HSS Cobalt Silver & Deming Drill Bit Set for when the hole you need to drill is larger than the diameter of the chuck capacity of your drill. These bits are made with 5% cobalt and can be used at much higher speeds than HSS drill bits. These stepped drill bit shanks fit 1 2"