Cleveland C56014 Hand Tap 3/8-16 Plug Rh Hss 4-flute Unc

Product Description

The CLEVELAND C56014 is a 3/8-16 straight flute hand tap designed for cutting internal threads in a range of ferrous materials. Built from high speed steel (HSS) with an oxide finish for improved lubricity and corrosion resistance, this tap features a plug chamfer, 4 flutes, and a right-hand thread direction. It holds a Class of Fit 2B with a Thread Limit of H3, making it suitable for standard tolerance internal thread applications. Overall length is 2.938 inches with a thread length of 0.750 inches. This tap is used by machinists, maintenance technicians, and metalworking tradespeople working on production or repair threading tasks.

The C56014 is rated for both blind hole and through-hole threading applications. It is well suited for use in cast iron, stainless steel, and steel workpieces. The UNC 3/8-16 thread form is one of the most common fastener standards in North American mechanical and structural applications, making this tap a frequent choice in manufacturing, maintenance, and repair environments. Shank diameter is 0.381 inches and the square drive measures 0.286 inches across, compatible with standard tap wrenches and tapping heads.

Key Features

• High speed steel construction for durability across ferrous materials including cast iron, stainless steel, and steel
• Oxide coating reduces friction and improves chip flow during tapping
• Plug chamfer (3-5 thread lead) for starting in through-holes or holes with sufficient depth clearance
• 4-flute straight flute design provides stability and good thread form in short-chipping materials
• Class 2B fit with H3 thread limit for standard tolerance internal threads
• Suitable for both blind hole and through-hole threading operations

Compatibility

Designed for cutting 3/8-16 UNC internal threads in cast iron, stainless steel, and steel. Compatible with standard tap wrenches and tapping fixtures accepting a 0.381-inch shank diameter and 0.286-inch square drive. Part of the CLEVELAND Series 1002BO.

Installation Notes

This tap is installed and operated by machinists or maintenance technicians using a tap wrench or machine tapping head. Always ensure the workpiece is securely clamped and the tap is started square to the hole to avoid thread damage or tap breakage. Use appropriate cutting fluid for the material being tapped, particularly with stainless steel. For blind holes, confirm adequate hole depth before tapping to prevent bottoming the tap under load.