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21/64" Cobalt SP Jobber Drill Bit


Bosch CO4148 21/64" Cobalt SP Jobber Drill Bit

SKU CO4148

MSRP: $5.40

$5.06 $
Bosch Bosch CO4148 21/64" Cobalt SP Jobber Drill Bit

SKU CO4148

Availability: Ships In 7-10 business days See Details


Product Overview

Bosch 21/64" Cobalt SP Jobber Drill Bit

SKU CO4148

  • Bosch cobalt drill bits offer the best heat resistance and rigid thick web design for drilling in extremely hard and abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium
  • 135° split point starts on contact with no walking or skating and no center punch is required
  • A tough cobalt alloy delivers heat resistance up to 1100° Fahrenheit allowing the bit to perform for extended periods of time in the most abrasive materials without failing due to the high heat levels
  • Overall bit hardness of 66-68 HRC from the cobalt formulation gives the ability to penetrate exceptionally tough materials
  • High red hardness of cobalt steel permits speeds 30% higher than regular high speed steel drills
In The Box
  • One (1) 21/64" Cobalt SP Jobber Drill Bits


Display SKU CO4148
UPC / ISBN 000346333312
Brand Bosch
Shipping Weight 0.2500
Condition New
Manufacturer's Warranty Product Defects Only
Return Policy Unopened Only, 30 Days
Addl Specs
  • Diameter: 21/64 Inches
  • Overall length: 4-5/8 Inches
  • Shank: 21/64 Inch
  • Coating: Cobalt
  • Number in Pack: 1
Application Ferrous Metal, Non Ferrous Metal, Plastic, Wood
Drive Type Standard
Material Cobalt
Package Type Individual

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