Value Collection MSC-04477113 Straight Flute Tap 3/4-10 Unc

Product Description

The VALUE COLLECTION MSC-04477113 is a straight flute bottoming tap designed to cut internal threads in pre-drilled holes where full thread depth close to the bottom is required. Made from high-speed steel with a bright/uncoated finish, this tap produces 3/4-10 UNC right-hand threads and carries an H3 thread limit for consistent tolerance control. With 4 flutes and a 2-inch thread length across a 4.25-inch overall length, it suits production and maintenance threading tasks in ferrous and non-ferrous materials. Machinists and toolroom technicians rely on bottoming taps as the final pass in a three-tap sequence or for blind-hole work where thread depth is critical.

This tap is suited for threading operations in machine shops, maintenance facilities, and manufacturing environments. The 3/4-10 UNC coarse thread form is a widely used fastener standard in structural, automotive, and general industrial applications. The bottoming chamfer — typically 1 to 2 thread leads — allows the tap to cut threads to within one or two pitches of the bottom of a blind hole, making it the right choice when full thread engagement depth is specified by engineering drawings or assembly requirements.

Key Features

• Bottoming chamfer for threading to near the bottom of blind holes
• 3/4-10 UNC coarse thread form with right-hand thread direction
• H3 thread limit for controlled tolerance and consistent fit
• 4-flute straight design suitable for through-holes and blind holes in a range of materials
• High-speed steel construction provides good wear resistance and re-sharpenability
• Bright/uncoated finish — no coating buildup affecting thread tolerance

Compatibility

Designed as a standard replacement or production tap for any application requiring 3/4-10 UNC internal threads, compatible with standard tap holders, tapping heads, and CNC toolholders accepting straight-shank taps of this size class.

Installation Notes

Bottoming taps should be used as the final tap in sequence following a taper and plug tap to reduce cutting load and risk of breakage. Secure the workpiece and ensure the tap is properly aligned to avoid cross-threading or tap breakage in the bore. Apply appropriate cutting fluid for the material being tapped — dry tapping high-speed steel tools in steel or cast iron accelerates wear. Follow shop safety procedures and machine guarding requirements when power tapping.