Missouri Precision Tool, Inc.

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Missouri Precision Tool, Inc.
866- 94 TOOLS
314 487 2686
314 487 2868 Fax

US Veteran Owned.

Concrete - Masonry Drilling
   SDS MAX (TE-Y) Hammer Bits
   SDS-Max (TE-Y) Shank Carbide Tipped Core Bits
   SDS-Max (TE_Y) Rockhard Core Cutter
   SDS or SDS+ Hammer Drill Bits
     Chisels and Assessories for SDS Plus Hammers
     Longer SDS-Plus Rotary Hammer Bits
     Quickstop SDS Bits,
     Rockhard SDS PLUS R4X 4-Cutter
     SDS Booster Plus Carbide Tipped Masonary Bits
     SDS Plus Hammer Bits
     SDS Plus Stop bits
     SDS Pyramid Point Hammer Bits
     SDS Rotary Only Rebar Cutters
     SDS-Plus "Hard Head" Solid Body Bits
     SDS-Plus Bits for Concrete Screws
     SDS-Plus Hammer Bits in Bulk Pack
     SDS Plus Extensions
   Spline Shank Carbide Tipped Core Bits
   Spline Shank Hammer Bits
   Rotary Hammer Adaptors
   Carbide Tipped Core Bits
Floor Sanding Abrasives
Relton Carbide Tipped Masonry Bits
Relton Groo-V Tip Multi-Purpose Bit
Rockhard SDS MAX and Spline Shank Extension
Rockhard SDS-MAX Dust Control Drill Bits
ROCKHARD Titanium Step Drills
Rockhard Tools, Inc.
SDS Rockhard Dust Control Drill Bits
Tenryu Carbide Tipped Saw Blades
Virginia Abrasives

SDS or SDS+ Rotary Hammer Masonry Drill Bits.


SDS Hammer Bits

Longer SDS Hammer Bits

Larger SDS Hammer Bits

SDS Pyramid Point Hammer Bits

SDS Booster Carbide Tipped Masonary Bits

Sds Plus r4x Hammer Drill Bits

Ultra Heavy Duty version of our SDS Plus bits. Drills difficult materials

SDS Relton Groo-V Tip

SDS Relton Quik-Stop Anchor Bit Drill

SDS Bits Bulk Pack


SDS Bits for TapCon

Chisels and Assessories for SDS Hammers

SDS Rotary Only Rebar Cutters

Complete Rockhard Catalog (2.4 MEG PDF)

SDS or SDS+ Hammer Drill Bits
Code Name Image Price  

What is SDS, SDS Plus and SDS Max?

There is a lot of confusion about SDS, SDS Plus and SDS-MAX bits and what kind of drills they fit. SDS or Slotted Drive System (or SDS Plus of SDS+) was developed by Bosch in 1975 for use in it's smaller rotary hammers. SDS (or Slotted Drive System) bits for hammer drills/rotary hammers allow the bit to slide in the chuck and enhance the hammering action of the tool. SDS-Max was developed later for larger hammers.

SDS and SDS Plus are different names for the same shank. Shank size is approximately 3/8" (10mm) in diameter, with 2 open drive slots and 2 closed retentions shots. Maximum hole size for these drills is around 1" depending on who makes the bit. Dewalt calls these drill SDS, Bosch calls them SDS Plus. Any bit in our catalog that is called SDS Plus or simply an SDS will fit any rotary hammer that specifies SDS or SDS Pus or SDS+.

SDS-MAX is a different size all together. Shank size is close to 3/4" (.7" or 14mm) in diameter. Instead of 2 drive slots there are 3 open drive slots and 2 closed retentions slots. This is designed for large hammers, with a maximum bit diamter of over 2"

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