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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.

Spline 4 Cutter Drill Bits

Features / SpecsRefine OptionsReviews
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

Length
1
 
 

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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"