Skip to main content
Jobber Drill Bit, 3/8 in Dia, 5-1/8 in OAL, Twist Flute, 3-Flute, 3/8 in Dia Shank Bright

Roll over image to zoom in

Milwaukee 48-89-2321 Jobber Drill Bit, 3/8 in Dia, 5-1/8 in OAL, Twist Flute, 3-Flute, 3/8 in Dia Shank Bright

Item #: 48-89-2321 by Milwaukee

UPC #: 045242188369

See reviewsSee reviews
See reviews summary
In Stock

$16.27

/each
SAVE UP TO 1.63
Buying in bulk
QUICK SHIPPING*Usually ships in 1 business dayIn stock: 1907 units available
QTY
+
+ Add to Wishlist
Buy in Bulk & Save - See HowWatch Now

Shop with Confidence

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
  • Up to 10X life vs black oxide
  • RED HELIX™ design for rapid chip removal
  • 135 deg split point for precision start
  • Chip Breaker decreased heat build-up
  • Secure-Grip prevents bit from slipping in chuck

Material

Cobalt

Drill Bit Size

0.375 in.

Shank Diameter

3/8"

Assembled Depth (in.)

3/8

Assembled Height (in.)

3/8

Assembled Width (in.)

5.12

Bit Diameter

3/8 in

Bit Length (in.)

5

Bit Material

Cobalt

Bit Style

Spiral

Drill Bit Type

Twist

Drill Bit Type(s) Included

Twist

Drilling Length

3.625 in.

Individual/Set

Individual

Material Application

Aluminum, Cast Iron, Duct/Sheet Metal, Stainless Steel, Steel

Power Tool Product Type

Drill Bits & Router Bits

Shank Style

3-Flat

Surface Application

Metals

Tools Product Type

Power Tool

Shank Type

3-Flat

Finish

Bright

Quick Change Shank

No

Number of Flutes

3

Shank Length

1-1/2"

Point Angle

135 deg

Overall Length

5-1/8"

Flute Type

Twist

Diameter

3/8"

Nomenclature

48-89-2321 COBALT BIT 3/8IN

Cutting Direction

Right Hand

Flute Length

3-5/8"

Point Type

Split

Applicable Materials

Metal Plastic PVC Stainless Steel Wood

Style

Thunderbolt

Drill Size

3/8"

Number in Package

1 pc

Packaging Type

Carded

Defective Code

A

Each Weight

0.110 LB

Hazardous Material

No

Returnable

Yes

Sub Brand

Red Helix

Velocity

A

Vendor Internet Sales Policy

Sale of this product on third-party online marketplaces (eg. Amazon, eBay, Walmart) is prohibited.

Product Type

Drill Bit

Length

5.12 In.

Drilling Depth

3-5/8 In.

Tip Angle

135 Degree

Standards

ANSI

Series

48-89-23

Drill Bit Material

Cobalt

Spiral Type

Regular

Tool Application

Drilling

Coating/Finish

Cobalt

Coolant Through

No

Double Margin

No

Drill Bit Grade

General Purpose

Drill Bit Size (Decimal Inch)

0.3750

Drill Bit Size (Inch)

3/8

Drill Bit Size Range (Decimal Inch)

0.3500 - 0.4000

Drill Point Angle

135 degrees

Flute By Diameter Ratio

10xD

Flute Length (Decimal Inch)

3.6250

Flute Length (Inch)

3-5/8

Maximum Drilling Depth (Decimal Inch)

3.6250

Maximum Drilling Depth (Inch)

3-5/8

Number of Flats

3

Overall Length (Decimal Inch)

5.1200in

Overall Length (Inch)

5

Primary Workpiece Material

Stainless Steel

Primary Workpiece Material Code

M

Shank Diameter (Decimal Inch)

0.3750

Shank Diameter (Inch)

3/8in

Shank Length (Decimal Inch)

1.4950in

Tool Performance

General Purpose

UNSPSC Code

23241634

Vendor Drop Ship

N

Specification Designation

ANSI

Web Configuration

Tapered

Web Thinning

Web-Thinned

Height

1.87

Width

6.75

ECCN

EAR99

Country Origin Code

KR

Product Overview
DRILL BIT BIT 3/8IN COBALT
Specifications:

Applicable Materials: Metal Plastic PVC Stainless Steel Wood

Milwaukee Cobalt RED HELIX drill bits are engineered for extreme durability and long life in hard metal applications. Designed with a Variable Helix that includes an aggressive 35 deg helix angle, which ends at 15 deg, the cobalt bits with RED HELIX provide Rapid Chip Removal limiting heat build-up to Stay Sharper Longer. The 135 deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Ideal for tough applications and provide up to 10X life vs black oxide drill bits but can be used in all twist drilling applications.