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Spline 4 Cutter Drill Bits

Milwaukee®’s Spline 4-Cutter Rotary Hammer Drill bits feature a 4-Cutter 4x90° tip geometry to avoid lock up in rebar, patented rebar chamfers for increased durability, and a high volume flute for fast debris removal. Used for drilling holes in brick, block, concrete, and reinforced concrete.

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Features / Specs Refine Options Reviews
  • 4-Cutter 4X90° Geometry to avoid lock up in rebar
  • Patented Rebar Chamfers for increased durability
  • High-Volume Flute for fast debris removal

Product Specifications

Cutter Geometry 4-Cutter
Pack Qty 1 Pack
Style Spline
   
Recommendations

Diameter

5/8"
11/16"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
1-3/4"
2"

Useable Length

11"
17"
18"
24"
31"
5"

Length

10"
16"
22"
23"
29"
36"
SKU
Diameter
Useable Length
Length
48-20-4300
5/8"
5"
10"
48-20-4305
5/8"
11"
16"
48-20-4310
5/8"
17"
22"
48-20-4315
5/8"
24"
29"
48-20-4320
5/8"
31"
36"
48-20-4325
11/16"
11"
16"
48-20-4330
3/4"
5"
10"
48-20-4335
3/4"
11"
16"
48-20-4340
3/4"
17"
22"
48-20-4345
3/4"
24"
29"
48-20-4350
3/4"
31"
36"
48-20-4360
7/8"
11"
16"
48-20-4365
7/8"
17"
22"
48-20-4367
7/8"
31"
36"
48-20-4370
1"
11"
16"
48-20-4375
1"
17"
22"
48-20-4380
1"
31"
36"
48-20-4385
1-1/8"
11"
16"
48-20-4390
1-1/8"
17"
22"
48-20-4395
1-1/4"
11"
16"
48-20-4400
1-1/4"
17"
22"
48-20-4405
1-1/4"
31"
36"
48-20-4410
1-3/8"
17"
22"
48-20-4415
1-1/2"
17"
22"
48-20-4418
1-3/4"
18"
23"
48-20-4419
2"
18"
23"