TCO139-SST+™ Jobbers Length Drill Bit

• Back tapered body
• For hand-held tools in mild steel
• Quick shank drill bit for high tensile steel
• Exclusive self-centering "Speed Tip"
• Heavy-duty fully ground body construction
• Unique shank design with six long flats
• Proven SST heat and surface treatment
• New exclusive Quick Shank
• Special bronze SST surface treatment
• Heavy-duty HSS+Co body construction
• Applications include drilling of round surfaces and ideal for cordless drills

Specifications

• Material: High Speed Steel
• Drill Size: 5/16"
• Decimal Drill Size: 0.3125"
• Overall Length: 4-5/8"
• Flute Length: 2-15/16"
• Point Angle: 118°