What Do NPT and NPS Mean?

NPT is tapered pipe threading while NPS is straight pipe threading; the fitting standard determines the tool.

What Do UNC and UNF Mean?

UNC and UNF identify coarse and fine unified thread series used with matching taps, dies and fasteners.

What Is a 118-Degree Drill Point?

The 118-degree point is a common general-purpose geometry for drilling a wide range of materials.

What Is a 135-Degree Split Point?

A split-point geometry helps reduce walking and can improve starting behavior on many metal drilling jobs.

How to Read Drill Bit Sizes

Drill bit sizes may be fractional, metric, letter or number; the label determines the actual diameter.

What Is an Annular Cutter Pilot Pin?

A pilot pin helps locate the hole, guide the cutter and assist with slug ejection.

What Is a 3/4-Inch Weldon Shank?

A 3/4-inch Weldon shank is a common annular cutter interface used with compatible magnetic drill arbors.

Magnetic Drill Presses for Magnetic Drill Tools

The best magnetic drill presses choice for mag drilling balances performance, compatibility and total job cost. Use this practical checklist to move from the application to the right product configuration.

Hole Cutter Sets for Industrial Machining Tools

The best hole cutter sets choice for industrial machining balances performance, compatibility and total job cost. Use this practical checklist to move from the application to the right product configuration.

Floor Scrapers for Concrete & Flooring for Industrial Machining Tools

The best floor scrapers choice for industrial machining balances performance, compatibility and total job cost. Use this practical checklist to move from the application to the right product configuration.

Screw Extractor Sets for Industrial Machining Tools

The best screw extractor sets choice for industrial machining balances performance, compatibility and total job cost. Use this practical checklist to move from the application to the right product configuration.

Fiberglass Router Bits for Fiberglass Routing Tools

The best fiberglass router bits choice for fiberglass routing balances performance, compatibility and total job cost. Use this practical checklist to move from the application to the right product configuration.