Missouri Precision Tool, Inc.

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Missouri Precision Tool, Inc.

866- 94 TOOLS

866-948-6657
314 487 2686
314 487 2868 Fax
Same Day Shipping

US Veteran Owned.


Floor Sanding Abrasives
Concrete - Masonry Drilling
   Rotary Hammer Adaptors
   Roto-Percussion Carbide Tipped Masonry Bits
   Roto-Percussion Carbide Tipped Masonry Bits in bulk
   Relton Groo-V Tip Multi-Purpose Bit
   SDS MAX Hammer Bits
   SDS or SDS+ Hammer Drill Bits
   Spline Shank Hammer Bits
Relton Carbide Tipped Masonry Bits
Rockhard Tools, Inc.
United Abrasives - SAIT
Tenryu Carbide Tipped Saw Blades
Virginia Abrasives


Rotary Hammer Masonry Drill Bits.

SAME DAY SHIPPING

SDS or SDS+ Hammer Bits

SDS MAX Rotary Hammer Bits

Spline Shank Rotary Hammer Bits

Relton A-Taper Bits

Relton Groo-V Tip Multi-Purpose Bit

Adapters

Rotary Percussion Carbide Bits

Rotary Percussion Carbide Bits Bulk Pack

We've been selling the Hammer Bits for over 20 years and have found these to be a quality bit.

There are less expensive bits, but we've had customer after customer tell us how our bits last longer on difficult materials and drill faster.

While we are not the least expensive, we are very competitive when life of the bit and number of holes produced is considered.

All Rockhard bits are manufactured in EU.

Complete Rockhard Catalog (2.4 MEG PDF)


Concrete - Masonry Drilling
Code Name Image Price  

Quality Products, specially recommended for fastening.

For Professional Drilling in concrete, brick and stone.

Special double-flute for fast, efficient dust removal,

TMS treatment (stress relief) for superior strength.

Meets all tool manufacturers sepcificaltion.

Specially brazed for superior performance.

Unconditionally guaranteed.

Produced according to ANSI Standards.

Our Guarantee to you:
Try our products. When you get your order, try a bit. If that bit does not measure up to your expectations, call us, we'll send UPS to pick up the entire order and give you full credit for it.

What is SDS, SDS Plus and SDS Max?

There is a lot of confusion about SDS and SDS Plus and SDS-MAX 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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