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REGAL CUTTING TOOLS Extension Tap: 3/8"-16 UNC, H3 / 3B, 3 Flute, Plug Chamfer - Spiral-Point Extension Taps
REGAL CUTTING TOOLSSpiral-Point Extension Taps

REGAL CUTTING TOOLS Extension Tap: 3/8"-16 UNC, H3 / 3B, 3 Flute, Plug Chamfer

The REGAL CUTTING TOOLS Extension Tap is a 3/8"-16 UNC spiral-point extension tap, type H3 / 3B with a plug chamfer, made from high-speed steel and featuring 3 flutes (MPN 015141AS).

SKU 3G-OTH-313613

Also listed as: 015141 AS · 015141-AS

Brand
REGAL CUTTING TOOLS
Item
Extension Tap: 3/8"-16 UNC, H3 / 3B, 3 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps
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Technical Specifications

REGAL CUTTING TOOLS
Manufacturer Part Number
015141AS
Type
H3 / 3B, Plug Chamfer, High Speed Steel
Flute
3

Technical Documents

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REGAL CUTTING TOOLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The REGAL CUTTING TOOLS Extension Tap is a 3/8"-16 UNC spiral-point extension tap, type H3 / 3B with a plug chamfer, made from high-speed steel and featuring 3 flutes (MPN 015141AS).

Frequently Asked Questions

What is a Regal Cutting Tools extension tap used for?

A Regal Cutting Tools extension tap is used to cut internal threads in deep or hard-to-reach holes. The 3/8"-16 UNC size with plug chamfer and 3-flute design is common in automotive, aerospace, and general machining applications where standard taps cannot reach.

What are the specifications of the Regal Cutting Tools 015141AS extension tap?

The Regal Cutting Tools 015141AS is a 3/8"-16 UNC spiral-point extension tap with H3 / 3B tolerance, plug chamfer, 3 flutes, and high-speed steel construction. It is designed for through-hole threading and provides chip evacuation forward.

Where to buy Regal Cutting Tools extension taps worldwide?

3G Electric supplies Regal Cutting Tools extension taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 015141AS or other Regal Cutting Tools taps.

How to select the correct extension tap for deep-hole threading?

Select an extension tap like the Regal Cutting Tools 015141AS when the thread depth exceeds standard tap length. Match thread size (3/8"-16 UNC), chamfer type (plug for general use), and material (high-speed steel for most steels). Ensure the tap extension clears the workpiece.

Used in

Common applications for REGAL CUTTING TOOLS
Lead screw manufacturing — Regal Cutting Tools ACME taps (e.g., 1"-5, 2G) for cutting precision threads in power transmission components.
Pulley assembly — Regal Cutting Tools pulley taps (e.g., M10x1.5, D6/6H) for threading set screw holes in sheaves and pulleys.
Maintenance of left-hand thread mechanisms — Regal Cutting Tools left-hand ACME taps (e.g., 1/2"-10 LH) for repairing adjustment screws on industrial equipment.
Blind hole threading — Regal Cutting Tools bottoming chamfer pulley taps (e.g., M3.5x0.6) for creating full threads in closed-end holes.
Metric thread cutting in imported machinery — Regal Cutting Tools metric pulley taps (e.g., M3.5x0.6) for servicing European or Asian equipment.
Unified thread repair — Regal Cutting Tools pulley taps (e.g., #8-32 UNC, H3/2B) for rethreading fastener holes in automotive or industrial components.

REGAL CUTTING TOOLS Products

3G Electric supplies REGAL CUTTING TOOLS spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
REGAL CUTTING TOOLS Extension Tap: 5/8"-11 UNC, H3 / 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 015157AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Extension Tap: 5/8"-11 UNC, H3 / 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 015157AS)
REGAL CUTTING TOOLS Extension Tap: 1/2"-13 UNC, H3 / 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 015144AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Extension Tap: 1/2"-13 UNC, H3 / 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 015144AS)
REGAL CUTTING TOOLS Extension Tap: 3/8"-16 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 008868AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Extension Tap: 3/8"-16 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 008868AS)
REGAL CUTTING TOOLS Extension Tap: 5/16"-18 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 015131AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Extension Tap: 5/16"-18 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 015131AS)
REGAL CUTTING TOOLS Extension Tap: 1/2"-13 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 015146AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Extension Tap: 1/2"-13 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 015146AS)
REGAL CUTTING TOOLS Extension Tap: 1/4"-20 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 008862AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Extension Tap: 1/4"-20 UNC, H3 / 3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 008862AS)

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REGAL CUTTING TOOLS Pulley Tap: #8-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 015102AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: #8-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 015102AS)
REGAL CUTTING TOOLS Pulley Tap: 5/16"-18 UNC, H3 / 3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 015128AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: 5/16"-18 UNC, H3 / 3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 015128AS)
REGAL CUTTING TOOLS Pulley Tap: M10x1.5 Metric, D6 / 6H, 3 Flute, Plug Chamfer, High Speed Steel (MPN 027270AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: M10x1.5 Metric, D6 / 6H, 3 Flute, Plug Chamfer, High Speed Steel (MPN 027270AS)
REGAL CUTTING TOOLS Pulley Tap: #10-24 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 091380AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: #10-24 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 091380AS)
REGAL CUTTING TOOLS Pulley Tap: M10x1.5 Metric, D6 / 6H, 3 Flute, Plug Chamfer, High Speed Steel (MPN 027269AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: M10x1.5 Metric, D6 / 6H, 3 Flute, Plug Chamfer, High Speed Steel (MPN 027269AS)
REGAL CUTTING TOOLS Pulley Tap: M4x0.7 Metric, D4 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 027211AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: M4x0.7 Metric, D4 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 027211AS)
REGAL CUTTING TOOLS Pulley Tap: M8x1.25 Metric, D5 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 027260AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: M8x1.25 Metric, D5 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 027260AS)
REGAL CUTTING TOOLS Pulley Tap: #6-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 015100AS)
REGAL CUTTING TOOLS
REGAL CUTTING TOOLS Pulley Tap: #6-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 015100AS)