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Spline Shank Drill Bits 

Spline Shank Drill Bits

Our carbide-tipped drill bits and accessories are premium quality, professional-grade tools manufactured in Germany to the highest industry standards for Simpson Strong-Tie®. They are designed to meet precise tolerance requirements and incorporate proprietary features that enhance durability and drilling speed, while improving ease of use. Regular and Quad Head® bit tip configurations are available.

Fits all current and older Spline rotohammers from AEG, Black & Decker, Bosch, DeWalt, Hitachi, Kango, Makita, Metabo, Milwaukee, Ramset, Red Head and Ryobi.

Key Features

  • Uniformly brazed carbide inserts result in longer bit life
  • Most bits contain a centering tip that facilitates easy spot drilling
  • Chromium-nickel-molybdenum steel alloy body ensures hammering quality and extended service life
  • Heat-treatment procedures and shot-peened finish increase surface hardness, drilling speed, reduces drill bit wear and improves resistance to bending forces
  • Drill bits conform to ANSI Standard B212.15

Additional Features for Spline-Shank Bits

  • Chisel-shaped drill-bit head penetrates the material and directs concrete dust into the multi-flute spiral
  • Patented, high-volume, multi-flute spiral quickly channels concrete dust from the hole to improve drilling speed
  • 4 x 90° head geometry crushes through rebar and prevents sticking in reinforced concrete

Quad-Head Feature

  • All the features of single cutter bits and the quad-head dual-cutter are designed to improve durability and drilling speed. The high-volume, double-helix design of the quad-head bit comes with the patented, high-performance, reinforced core flute to maximize energy transfer.

Related Literature

Product Information Tables

Spline Shank Bits
Dia. (in.) Drilling Depth (in.) Overal Length (in.) Model No.
3/8 5 10 MDSP03710
8 13 MDSP03713
11 16 MDSP03716
7/16 8 13 MDSP04313
1/2 5 10 MDSP05010
8 13 MDSP05013
11 16 MDSP05016
17 22 MDSP05022
24 29 MDSP05029
31 36 MDSP05036
9/16 8 13 MDSP05613
11 16 MDSP05616
18 23 MDSP05623
5/8 5 10 MDSP06210
8 13 MDSP06213
11 16 MDSP06216
17 22 MDSP06222
24 29 MDSP06229
31 36 MDSP06236
11/16 8 13 MDSP06813
11 16 MDSP06816
3/4 5 10 MDSP07510
8 13 MDSP07513
11 16 MDSP07516
17 22 MDSP07522
24 29 MDSP07529
31 36 MDSP07536
7/8 11 16 MDSP08716
17 22 MDSP08722
31 36 MDSP08736
1 11 16 MDSP10016
17 22 MDSP10022
31 36 MDSP10036
1 1/8 11 16 MDSP11216
17 22 MDSP11222
1 1/4 11 16 MDSP12516
17 22 MDSP12522
1 3/8 11 16 MDSP13716
17 22 MDSP13722
1 1/2 11 16 MDSP15016
17 22 MDSP15022
1 3/4 17 22 MDSP17522
2 17 22 MDSP20022
Spline Shank Quad Head Bits
Dia. (in.) Drilling Depth (in.) Overall Length (in.) Model No.
5/8 5 10 MDSP06210Q
11 16 MDSP06216Q
17 22 MDSP06222Q
24 29 MDSP06229Q
31 36 MDSP06236Q
11/16 11 16 MDSP06816Q
3/4 5 10 MDSP07510Q
11 16 MDSP07516Q
17 22 MDSP07522Q
24 29 MDSP07529Q
31 36 MDSP07536Q
7/8 11 16 MDSP08716Q
17 22 MDSP08722Q
1 11 16 MDSP10016Q
17 22 MDSP10022Q
31 36 MDSP10036Q
1 1/8 11 16 MDSP11216Q
17 22 MDSP11222Q
1 1/4 11 16 MDSP12516Q
17 22 MDSP12522Q
31 36 MDSP12536Q
1 3/8 11 16 MDSP13716Q
17 22 MDSP13722Q
1 1/2 17 22 MDSP15022Q
1 3/4 18 23 MDSP17523Q
2 18 23 MDSP20023Q