A studio photograph of the Bosch BDT11S 11-piece tap and drill set in its original clear plastic retail clamshell packaging, showing the organized interior and T-handle wrench.
A top-down studio photograph of the opened Bosch BDT11S set, displaying five black drill bits, five silver plug taps, and a T-handle tap wrench in red labeled slots.
A studio photograph of the top of a closed blue Bosch plastic storage case featuring the red and white Bosch logo on a textured surface.
A studio photograph showing the side profile of a closed blue and black Bosch plastic storage case with a secure latch mechanism.
A studio photograph of the Bosch BDT11S 11-piece tap and drill set in its original clear plastic retail clamshell packaging, showing the organized interior and T-handle wrench.
A top-down studio photograph of the opened Bosch BDT11S set, displaying five black drill bits, five silver plug taps, and a T-handle tap wrench in red labeled slots.
A studio photograph of the top of a closed blue Bosch plastic storage case featuring the red and white Bosch logo on a textured surface.
A studio photograph showing the side profile of a closed blue and black Bosch plastic storage case with a secure latch mechanism.
BOSCH

Bosch Tap Drill Bit Set BDT11S 11 Piece High Carbon Steel (Plug Taps Matching Bits T Handle Wrench Right Hand Threading Metal Fastener Tool)

In stock
SKU: BDT11S
$25.79 USD

Description

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Industrial Bosch BDT11S 11 Piece Tap and Drill Bit Set with T-Handle Wrench

The Bosch BDT11S 11-Piece Tap and Drill Bit Set operates as a commercial-grade thread-cutting kit engineered to execute precise right-hand internal threading and hole creation in mild steel, cast iron, aluminum, and dense plastic materials. Manufactured from heat-treated high carbon steel with precision rolled threads, this 11-piece set couples plug taps ranging from #6-32 to 1/4"-20 directly with their corresponding wire-gauge pilot drill bits to eliminate pitch calculation errors and prevent tap binding. Incorporating no-skate drill bit tips for immediate hole entry without a center punch along with an adjustable T-handle tap wrench, this fractional threading kit restores stripped fastener holes and cuts fresh internal threads across electrical, HVAC, and machinery maintenance operations.

Best Used For:

  • Internal Thread Repair & Re-Tapping: Restoring stripped internal threads on aluminum gear housings, steel mounting brackets, and machine enclosures.
  • Metal Electrical Enclosure Threading: Drilling pilot holes and cutting clean #6-32 through 1/4"-20 internal machine screw threads in junction boxes and conduit fittings.
  • Automotive & Mechanical Fastener Maintenance: Creating new threaded mounting holes in structural steel plates, cast iron frames, and non-ferrous motor mounts.

Key Performance & Safety Features

  • Matched Pilot Drill Bit Pairing: Supplies exact-diameter wire gauge drill bits for every tap size to ensure precise thread engagement depth.
  • Heat-Treated High Carbon Steel Composition: Hardened tool steel formulation provides high wear resistance during manual or low-speed machine tapping.
  • No-Skate Drill Bit Tip Geometry: Self-centering drill tips initiate immediate surface cutting to prevent wandering on curved metallic surfaces.
  • Precision Rolled Tap Threads: Rolled thread profile delivers smooth chip evacuation and greater structural wall strength than standard cut threads.
  • Adjustable Steel T-Handle Tap Wrench: Included hand wrench features collet jaws that clamp securely onto square tap shanks for balanced manual leverage.
  • Laser-Etched Size Identifiers: High-visibility size and pitch markings permanently etched on all taps and bits enable rapid tool selection.

What's Included

  • (5) High Carbon Steel Taps: #6-32, #8-32, #10-24, #10-32, 1/4"-20
  • (5) Matched Wire Gauge HSS Drill Bits: #36, #29, #25, #21, #7
  • (1) Adjustable Steel T-Handle Tap Wrench

Technical Specifications

Brand Name Bosch
Model Number SKU BDT11S
Product Tool Classification Tap and Drill Bit Set with Wrench
Total Kit Piece Count 11 Pieces
Primary Material Composition Heat-Treated High Carbon Steel
Measurement Standard SAE Fractional Inch & Machine Screw Sizes
Tap Chamfer Style Plug / Taper Chamfer
Included Tap Size Range #6-32 Min. to 1/4"-20 Max.
Threads Per Inch (TPI) Capabilities 13, 14, 16, 18, 20, 24, 32 TPI
Threading Direction Right-Hand Internal Cut
Drill Tip Geometry No-Skate Self-Centering Point
Surface Protective Finish Bright Uncoated Natural Metal
Target Substrate Materials Mild Carbon Steel, Aluminum, Brass, Cast Iron, Structural Plastics

Pro-Tip: When cutting new internal threads in steel or cast iron using these plug taps, apply a generous amount of cutting oil to the tap flutes and turn the T-handle wrench clockwise 1/2 turn, then back off 1/4 turn counter-clockwise. Reversing rotation breaks the metal chip swarf away from the cutting teeth, preventing thread binding and keeping the tap from breaking inside blind holes.