Walter 01A521 Fractional 21/64" SST+ 135° Jobbers Round Shank Drill Bit

Walter 01A521 Fractional 21/64" SST+ 135° Jobbers Round Shank Drill Bit

Walter SST+ drill bits are made with a cobalt blend to drill even more holes faster on any type of material. 

• Drill size: 21/64"
• Flute length: 2 15/16"
• Overall length: 4 19/32"
• "High flow" flute design
• Back tapered body
• Drills more holes, faster
• Heavy-duty fully ground body construction 
• Special bronze SST surface treatment 

Materials

• High tensile steel
• Mild steel
• Non-ferrous metal
• Stainless steel

Applications

• Drilling of round surfaces
• Drilling with stationary machines