RECENTLY VIEWED
Skip to main content
DK Hardware Professional Tax Exempt? Net 30? - DK Net Terms
Roll over image to zoom in
Product Features
Product Overview
Related Videos
Reviews
Questions & Answers
Irwin 67521 Jobber Drill Bit, 21/64 in Dia, 4-5/8 in OAL, Spiral Flute, 1-Flute, 21/64 in Dia Shank Black Oxide
Item #: 67521 by Vise-Grip / Irwin Industrial Tools
UPC #: 24721675217
See reviewsSee reviews
Use Code: SAVEBIG2025 for Extra 10% Off
30 Days Easy Return. We are the largest supplier of the most adaptable, personalized hardware in the industry. We work hard to ensure you're satisfied with our products.
Features
- Bit is constructed of M-2 high-speed steel for the excellent combination of strength, heat resistance and wear resistance
- Black oxide coating resists corrosion
- 135 deg split point ensures a true start and eliminates bit walking
Height
7.30
Length
0.40
Width
1.90
Hazardous Material
No
Country Origin Code
CN
Diameter
21/64"
Finish
Black Oxide
Overall Length
4-5/8"
Grade
M2
Material
HSS
Shank Length
1-1/3"
Shank Diameter
21/64"
Flute Type
Spiral
Shank Type
Cylinder
Applicable Materials
Metal Plastic Wood
Flute Length
3-5/16"
Number of Flutes
1
Point Angle
135 deg
Cutting Direction
Clockwise
Nomenclature
67521 HD JOBBER DRILL BIT21/64
Point Type
Split
Bit Diameter
21/64 In.
Individual/Set
Individual
Drilling Depth
3-5/16 In.
Tip Angle
135 Degree
Overall Length (mm)
117.48
Series
675
Drill Bit Material
HSS
Spiral Type
Regular
Tool Application
Drilling
Coating/Finish
Oxide
Coolant Through
No
Double Margin
No
Drill Bit Grade
General Purpose
Drill Bit Size (Decimal Inch)
0.3281
Drill Bit Size (Inch)
21/64
Drill Bit Size Range (Decimal Inch)
0.3000 - 0.3500
Drill Point Angle
135 degrees
Flute By Diameter Ratio
10xD
Flute Length (Decimal Inch)
3.3125
Flute Length (Inch)
3-5/16
Flute Length (mm)
84.14
Material Grade
M2
Maximum Drilling Depth (Decimal Inch)
3.3125
Maximum Drilling Depth (Inch)
3-5/16
Number of Flats
0
Overall Length (Decimal Inch)
4.6250
Overall Length (Inch)
4-5/8
Shank Diameter (Decimal Inch)
0.3281
Shank Diameter (Inch)
21/64
Shank Length (Decimal Inch)
1.3125
Shank Length (Inch)
1-5/16
Tool Performance
General Purpose
UNSPSC Code
23241634
Vendor Drop Ship
Y
Proprietary Coating/Finish
Black Oxide
Web Configuration
Tapered
Web Thinning
Web-Thinned
Bit Length
3 5/16 in
Type
HSS Drill Bit
Applications
General Metal Drilling
No of Flutes
2
Point Shape
Split Point
Cutting Edge Material
HSS
Nominal Diameter
21/64 in
Resistance
Corrosion
UNSPSC
27112801
Cutting Diam [Nom]
21/64 in
Overall Length [Nom]
4 5/8 in
Spiral Angle
CW
Structure
Solid
Length Group
Jobber
Product Overview
BIT DRILL JOBBER HD 21/64IN
Specifications:
Specifications:
Application: For general metal drilling
Applicable Materials: Metal Plastic Wood
High-speed steel with black oxide treatment that reduces friction between bit and workpiece. Split point starts on contact in metal, wood and plastic; eliminates walking or skating when drilling into metal; 135 deg split point on all bits above 1/8 in ; jobber length.