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  • 48-89-2329, 48-89-2338, 48-89-2332 - RED HELIX™ Cobalt 1/2" Drill Bit
  • 48-89-2329, 48-89-2338, 48-89-2332 - RED HELIX™ Cobalt 1/2" Drill Bit

RED HELIX™ Cobalt Drill Bits

The MILWAUKEE® RED HELIX™ Cobalt Drill Bit is engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX ™ that includes an aggressive 35° Helix Angle which ends at 15°. The 135° SPLIT POINT TIP™ delivers a precision start and prevents walking for fast, accurate holes in Hard Metal, PVC and wood.The tapered drill bits feature a new ENHANCED TAPERED WEB™ that strengthens the bit's core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits™.

RED HELIX™ Cobalt Drill Bits

Features / SpecsRefine OptionsReviews
Cobalt alloy for up to 15X Life vs. Black Oxide Drill Bits
QUADEDGE TIP™ designed to decrease heat build up and drill faster
135° split point for precision start no walking
ENHANCED TAPERED WEB™ strengthens the bits core
VARIABLE HELIX™ Design for rapid material extraction
3-Flat Secure-Grip™ helps keep the bit fixed within the the chuck
Designed for Hard Metals, PVC and Wood

Product Specifications

Length
1
 
 

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Diameter

1/16"

5/64"

3/32"

7/64"

1/8"

9/64"

5/32"

11/64"

3/16"

13/64"

7/32"

15/64"

1/4"

17/64"

9/32"

19/64"

5/16"

21/64"

11/32"

23/64"

3/8"

25/64"

27/64"

7/16"

29/64"

15/32"

13/32"

1/2"

Variable Helix

Chip Breaker

Shank

3-Flat

3/8" Reduced 3-Flat

Round

SKU
Diameter
Variable Helix
Chip Breaker
Shank
48-89-2301
1/16"
Round
48-89-2302
5/64"
Round
48-89-2303
3/32"
Round
48-89-2304
7/64"
Round
48-89-2305
1/8"
X
Round
48-89-2306
9/64"
X
Round
48-89-2307
5/32"
Round
48-89-2308
11/64"
X
Round
48-89-2309
3/16"
X
X
3-Flat
48-89-2310
13/64"
X
X
3-Flat
48-89-2311
7/32"
X
X
3-Flat
48-89-2312
15/64"
X
X
3-Flat
48-89-2313
1/4"
X
X
3-Flat
48-89-2314
17/64"
X
X
3-Flat
48-89-2315
9/32"
X
X
3-Flat
48-89-2316
19/64"
X
X
3-Flat
48-89-2317
5/16"
X
X
3-Flat
48-89-2318
21/64"
X
X
3-Flat
48-89-2319
11/32"
X
X
3-Flat
48-89-2320
23/64"
X
X
3-Flat
48-89-2321
3/8"
X
X
3-Flat
48-89-2322
25/64"
X
X
3/8" Reduced 3-Flat
48-89-2323
13/32"
X
X
3/8" Reduced 3-Flat
48-89-2324
27/64"
X
X
3/8" Reduced 3-Flat
48-89-2325
7/16"
X
X
3/8" Reduced 3-Flat
48-89-2326
29/64"
X
X
3/8" Reduced 3-Flat
48-89-2327
15/32"
X
X
3/8" Reduced 3-Flat
48-89-2328
15/32"
X
X
3/8" Reduced 3-Flat
48-89-2329
1/2"
X
X
3/8" Reduced 3-Flat