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Minerallac Company 91920D - This is a 23/64 inch high speed jobber drill with a 135° split point. The sheet identifies the material as steel. It is a jobber length drill for general drilling applications.
Minerallac Company

91920D

Alternate Item Number: 14568164

UPC: 085937051134


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Overview

The Minerallac 91920D is a 23/64" High-Speed Steel (HSS) Jobber Split Point Drill Bit designed for precise metal drilling. This drill bit features a 135° split point, which eliminates walking when starting holes and improves penetration in steel, aluminum, and other metals. Constructed from durable HSS, it withstands high-speed drilling without losing edge sharpness. The polished flute design ensures fast chip removal, reducing heat buildup and extending tool life. This 6-pack includes six identical drill bits, each with a straight shank for compatibility with standard drill chucks. Manufactured in the USA by Minerallac, a trusted name in industrial cutting tools, the 91920D is ideal for general-purpose drilling in workshops, fabrication shops, and manufacturing environments. The split point design reduces the need for center punching, saving time and improving accuracy on metal surfaces.
  • 23/64" diameter HSS jobber drill bit for metal drilling
  • 135° split point reduces walking and improves penetration
  • Straight shank for compatibility with standard drill chucks
  • Polished flute design for fast chip removal and extended tool life
  • 6-pack includes six identical drill bits, made in the USA

Specifications

Material
High Speed Steel (HSS)
Size
23/64 inch
This is a 3/8 in. HSS jobber length drill bit with a 135° split point. It is made of high speed steel with a black oxide finish. The drill bit has a 3/8 in. shank diameter, 3-5/8 in. flute length, and 5 in. overall length. It is described as heavy-duty construction.

33324

This is a 3/8 in. HSS jobber length drill bit with a 135° split point. It is made of high speed steel with a black oxide finish. The drill bit has a 3/8 in. shank diameter, 3-5/8 in. flute length, and 5 in. overall length. It is described as heavy-duty construction.
This is a 1/4 x 4 inch masonry drill bit with a straight shank. It is made with carbide and is intended for rotary use. The sheet identifies it as a masonry drill bit.

59906D

This is a 1/4 x 4 inch masonry drill bit with a straight shank. It is made with carbide and is intended for rotary use. The sheet identifies it as a masonry drill bit.
A 9/32 inch high speed jobber drill. It has a 118° point and is made of steel. This drill is intended for general drilling applications.

91615D

A 9/32 inch high speed jobber drill. It has a 118° point and is made of steel. This drill is intended for general drilling applications.
This is a 19/64 inch high speed steel jobber drill. It has a 118° point and is made of steel. The sheet identifies it as a jobber length drill.

91616D

This is a 19/64 inch high speed steel jobber drill. It has a 118° point and is made of steel. The sheet identifies it as a jobber length drill.
This is a 3/16 x 4 inch masonry drill bit with a straight shank carbide construction. It is intended for rotary use. The sheet identifies it as a masonry drill bit product.

59904D

This is a 3/16 x 4 inch masonry drill bit with a straight shank carbide construction. It is intended for rotary use. The sheet identifies it as a masonry drill bit product.
Straight shank carbide masonry drill bits for rotary use. The sheet identifies the size as 1/4 x 6 inches. These drill bits are intended for masonry drilling applications.

59908D

Straight shank carbide masonry drill bits for rotary use. The sheet identifies the size as 1/4 x 6 inches. These drill bits are intended for masonry drilling applications.
A 1/4" screw machine drill with a jobber drill style. It is made of steel with a stainless finish and has a polished flute for easy chip removal. The drill has a 118° point, 2-3/4" flute length, 4" overall length, and 1/4" shank diameter.

91613S

A 1/4" screw machine drill with a jobber drill style. It is made of steel with a stainless finish and has a polished flute for easy chip removal. The drill has a 118° point, 2-3/4" flute length, 4" overall length, and 1/4" shank diameter.
This is a high speed steel jobber drill bit with a 118° point. It has a black oxide finish and a straight shank. The drill is size #35 wire gauge (0.1100 in) with an overall length of 2-5/8 in and a flute length of 1-1/2 in.

91735

This is a high speed steel jobber drill bit with a 118° point. It has a black oxide finish and a straight shank. The drill is size #35 wire gauge (0.1100 in) with an overall length of 2-5/8 in and a flute length of 1-1/2 in.

Frequently Asked Questions

Is this drill bit sold individually or in a pack?

This drill bit is sold as a 6-pack, including six identical 23/64" HSS jobber split point drill bits.

Is this drill bit made in the USA?

Yes, the Minerallac 91920D is manufactured in the USA by Minerallac Company.

What is the point angle of this drill bit?

The drill bit features a 135° split point, which helps reduce walking when starting holes and improves penetration in metal.

What type of shank does this drill bit have?

The drill bit has a straight shank, compatible with standard drill chucks.

What metals can this drill bit be used on?

This HSS drill bit is designed for drilling steel, aluminum, and other metals commonly found in industrial and workshop applications.

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.

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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.

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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.