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Minerallac Company 91929 - A 1/2 inch high speed jobber drill with a 135° split point. It is made of steel with a black oxide finish. The drill has a 4-1/2 inch flute length, 6 inch overall length, and 1/2 inch shank diameter for general purpose use.
Minerallac Company

91929

Alternate Item Number: 12117006

UPC: 085937919298

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Minimum Qty: 6

Multiplier: 6

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Overview

The Minerallac Company 1/2 inch High Speed Jobber Drill (SKU 91929) is a precision-engineered tool for demanding metal drilling applications. Constructed from high-speed tool steel (HSS), this jobber-length drill bit offers exceptional durability and performance. Its 135-degree split point design is a key feature, enabling faster penetration and significantly reducing the risk of "walking" on the workpiece surface, ensuring accurate hole placement. This split point also minimizes the need for a center punch on many materials. The polished flute design facilitates efficient chip evacuation, which is crucial for maintaining cooler operating temperatures, preventing material buildup, and extending the overall lifespan of the drill bit. Manufactured in the USA, this 1/2" drill bit is a reliable component of Minerallac's extensive line of industrial tools, suitable for drilling into steel and various other metals. Its jobber length makes it versatile for a wide range of general-purpose drilling tasks in fabrication, maintenance, and manufacturing environments.
  • Constructed from High Speed Steel (HSS) for durability.
  • 1/2 inch jobber length for general-purpose drilling.
  • 135-degree split point for reduced walking and faster penetration.
  • Polished flute for efficient chip removal.
  • Manufactured in the USA.

Specifications

Application
General Purpose
Drill Point
135°
Finish
Black Oxide
Flute Length
4-1/2" IN
Fractional Size
1/2" IN
Material
Steel
Number Of Pieces
1
Overall Length
6" IN
Point Type
Split Point
Shank Diameter
1/2" IN
Special Features
Features a polished flute for easy chip removal.
Type
Jobber Drill
Package Weight (Imperial)
1.38 lbs
This is a 1/2" high speed jobber drill with a 135° point. It is made of steel with a black oxide finish and a split point. The drill has a 4-1/2" flute length, 6" overall length, and a 1/2" shank diameter.

91929D

This is a 1/2" high speed jobber drill with a 135° point. It is made of steel with a black oxide finish and a split point. The drill has a 4-1/2" flute length, 6" overall length, and a 1/2" shank diameter.
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92628

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59910

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59914

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92631

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92632

A 1/2" Trinado heavy-duty jobber length drill bit. It is made of high speed steel with a black oxide finish and a 135° split point. The bit has a 4-1/2" flute length, 6" overall length, and a 3/8" shank diameter.
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91919

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A rotary only carbide drill bit for masonry applications. It has a steel body with a black oxide finish and gold head. The drill point is tungsten carbide, with a 1/4" drill point, 1/4" shank diameter, and 4" overall length.

59906

A rotary only carbide drill bit for masonry applications. It has a steel body with a black oxide finish and gold head. The drill point is tungsten carbide, with a 1/4" drill point, 1/4" shank diameter, and 4" overall length.

Frequently Asked Questions about Minerallac Company

What are the main product lines offered by Minerallac Company?

Minerallac Company offers multiple comprehensive product lines including Minerallac Traditional (electrical fasteners), Strut Fittings, Stainless Steel Fasteners, Black Claw, Impact Staples, and Redmore. Their Traditional line features over a thousand electrical fastener variations covering conduit/cable/wire products, nail straps, beam clamps, metal stud & drywall accessories, acoustical supports, voice/data hardware, and miscellaneous electrical installation components.

What is Minerallac Company's warranty policy?

Minerallac Company provides a limited warranty that guarantees all products are free from defects in material and workmanship. If a product fails to meet this warranty, Minerallac's sole liability is to replace the product at no charge. The warranty is exclusive and does not cover consequential damages, lost profits, or implied warranties of merchantability or fitness for a particular purpose.

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Minerallac Company products are used extensively across electrical, construction, and industrial applications, including conduit and cable support, beam mounting, metal stud and drywall installation, voice/data infrastructure, and low voltage systems. Their product lines cover critical fastening solutions for electrical contractors, with specialized offerings in conduit hangers, straps, beam clamps, cable supports, and mounting hardware for various industrial environments.

What technical support does Minerallac Company offer?

Minerallac Company offers comprehensive technical support through multiple channels, including a toll-free customer service line at 800-927-3293, email support at [email protected], and online resources at www.minerallac.com. Their support covers product selection, technical specifications, and customer service for their extensive line of electrical fasteners, hangers, straps, and hardware across multiple product brands including Minerallac Traditional, Cully, Black Claw, IMPACT Staples, and Minerallac Stainless Steel. Support hours are 8:00 A.M. to 5:00 P.M. CT for their corporate office and 8:00 A.M. to 5:00 P.M. PT for their regional office.

What are the key features of Minerallac Company products?

Minerallac Company products feature a comprehensive range of electrical fasteners and hardware with exceptional versatility, including over 1,000 different sizes, styles, and finishes. Key features include multiple product lines such as Traditional, Strut Fittings, and Stainless Steel options with specialized finishes like 304/316 Stainless Steel, Hot-Dipped Galvanized, and Zinc Electroplate. Their products are engineered for electrical contractors, offering time-saving solutions with high-quality fasteners designed for durability, corrosion resistance, and worker safety across various installation environments.

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Minerallac Company products have robust environmental ratings, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13 certifications, CSA Type 1-4X, 12, and 13 ratings, and IEC 60529 IP66 protection. The products are WEEE and RoHS compliant, with UV and oil resistance, and can operate in extreme temperatures ranging from -55°C to 105°C, making them suitable for harsh industrial environments.

What accessories are available for Minerallac Company products?

Minerallac Company offers a comprehensive range of accessories across multiple product categories, including hardware, fasteners, and mounting solutions. Key accessories include stove bolts with nuts, wing nut washers, bar joist washers, stud clip adapters, brackets, perforated strapping, cable support options like J-hooks and bridle rings, box mounting brackets, outlet retainers, and various stud and drywall supports. Their accessories are available in multiple finishes such as stainless steel, hot-dipped galvanized, zinc electroplate, and powder-coated options.

How are Minerallac Company products typically installed?

Minerallac Company products are typically installed using a variety of specialized fastening solutions, including conduit hangers, straps, beam clamps, and mounting brackets designed for different electrical and construction applications. Installation methods vary by product type, with options for metal studs, drywall, beams, acoustical surfaces, and low voltage systems. The company offers multiple installation styles such as one-hole and two-hole straps, universal beam clamps, and specific mounting hardware to ensure secure and efficient attachment across diverse electrical and construction environments.

What communication protocols do Minerallac Company products support?

Minerallac Company's Brad product line supports multiple industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, Serial, AS-interface, and CC-Link. Their comprehensive portfolio covers over 40 industrial protocols, providing flexible communication solutions for various industrial automation applications from PC-based control to PLC systems.