RED HELIX™ Cobalt Drill Bits

Our RED HELIX™ Cobalt Drill Bits are 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' new ENHANCED TAPERED WEB™ strengthens the bits’ cores to increase flute durability. Our cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits™. Choose from single RED HELIX™ Cobalt drill bit sizes ranging from 1/16" to 1/2" or Milwaukee drill bit sets.

  • 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

Pack Qty 1 Pack
Coating Cobalt
Application Wood|Stainless Steel|Metal|Plastic|PVC
   

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"
13/32"
27/64"
7/16"
29/64"
15/32"
1/2"

Variable Helix

Chip Breaker

Shank

Round
3-Flat
3/8" Reduced 3-Flat
Item Category Number
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