Product Specification
1-1/2" SILVER & DEMING HSS DRILL BIT
Drill 1-1/2" holes with the Benchmark Abrasives Silver & Deming M2 HSS Drill Bit. Its reduced 1/2" shank fits compatible drill chucks, giving fabrication, maintenance, and repair shops a practical way to make larger holes without a larger chuck.
Precision-ground from a solid piece of heat-treated M2 high-speed steel, this bit is engineered for durability, accurate hole production, and dependable cutting performance in metal, wood, and plastic. The 135° split-point tip promotes fast, controlled starts with reduced walking, while spiral flutes efficiently move chips and debris away from the cutting edge. A 1/2" reduced shank with three flats provides a secure grip in compatible drill chucks and helps resist slipping under load.
Product Specifications
| Specification |
Details |
| Drill Bit Diameter |
1-1/2" |
| Drill Bit Type |
Silver & Deming |
| Material |
Heat-Treated M2 High-Speed Steel |
| Overall Length |
6" |
| Shank Size |
1/2" |
| Shank Style |
Reduced Round Shank with 3 Flats |
| Point Angle |
135° Split Point |
| Quantity |
1 Bit |
Features
-
Heat-treated M2 high-speed steel provides excellent durability and cutting performance for demanding shop and industrial use.
-
Precision-ground solid one-piece construction supports dimensional accuracy and consistent hole quality.
-
135° split-point tip promotes quick starts and helps reduce bit walking.
-
Spiral flutes efficiently evacuate chips and debris to help maintain cutting efficiency.
-
1/2" reduced shank allows the 1-1/2" cutting diameter to be used with compatible 1/2" drill chucks.
-
Three-flat shank design improves chuck grip and helps reduce slipping under load.
- Designed for professional drilling applications in metal, wood, and plastic.
Applications & Performance
Use this 1-1/2" reduced-shank drill bit for fabrication, maintenance, and repair jobs that call for larger holes. A drill press provides steady alignment and controlled feed for larger-diameter drilling.
Ideal applications include:
- Metal fabrication and repair
- Industrial maintenance
- Machinery and equipment work
- Construction and installation
- Automotive and general repair
- Woodworking and fabrication
- Plastic drilling
- Enlarging existing holes
- Production and shop drilling
For metal applications, use the correct spindle speed, feed pressure, and cutting fluid or lubricant when appropriate for the material being drilled. Larger drill diameters generally require lower operating speeds.
Materials
Suitable for drilling:
- Steel
- Stainless steel
- Cast iron
- Wood
- Plastic
Match the machine, speed, feed, and workholding to the material. For stainless steel, maintain a steady cutting feed to avoid rubbing and work hardening.
Machine Compatibility
Designed for drills and drill presses equipped with a chuck capable of securely gripping the 1/2" three-flat reduced shank. Machine drilling capacity must also be appropriate for the 1-1/2" cutting diameter and material being drilled.
Compatible examples include:
-
Grizzly® G0751 — for cast iron when equipped with a suitable drill chuck/arbor that accepts the 1/2" shank
-
Baileigh® DP-1500VS — for mild steel or cast iron when equipped with a suitable drill chuck/arbor that accepts the 1/2" shank
-
JET® GHD-20 — for cast iron when equipped with a suitable drill chuck/arbor that accepts the 1/2" shank
Other models may also be suitable. Match the machine’s drilling capacity to the hole size and material, and use a chuck that securely grips the 1/2" shank.
Safety Tips
- Wear safety glasses while drilling. Add a face shield over safety glasses or goggles when additional face protection is needed.
- Secure the workpiece with a vise, clamps, or other suitable workholding. Never hold the workpiece by hand during drill-press operation.
- Securely tighten the chuck on the shank and remove the chuck key before starting.
- Use the proper spindle speed and feed rate for the cutting diameter and work material.
- Keep hands clear of the rotating bit, chuck, chips, and workpiece.
- Do not wear gloves, loose clothing, jewelry, or other items that could become caught in rotating equipment. Tie back long hair.
- Stop the machine before clearing chips. Disconnect power before changing bits or making adjustments.
- Inspect the bit for damage or excessive wear before each use.
