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Straight Flute Hand Tap

-- Steady & Reliable Manufacturer --

Product Overview

This tap uses straight flutes and is built for general-purpose hand tapping rather than high-speed machine cycles, typically supplied as a taper, plug and bottoming set so an operator can start a thread easily and finish it to full depth, including in blind holes. It is the standard choice for field repair, maintenance and low-volume prototype work.

We supply this tap to maintenance departments, field service teams and general machine shops that need a reliable hand-tapping tool for occasional thread-cutting and repair work rather than continuous CNC production.

Specifications

ItemDetail
DesignStraight flutes; typically supplied as taper, plug and bottoming set
MaterialHSS (M2); carbon tool steel for economy sets
CoatingBright (uncoated) standard; TiN on request
Thread Size RangeM2 – M24 metric; #0-80 – 1" UNC/UNF
Best Suited ForGeneral hand tapping, field repair, low-volume prototyping
Set Configuration3-piece set (taper, plug, bottoming) per size, or single-piece
Thread Class2B/3B standard fit
PackagingIndividual case, boxed set, or bulk pack

Application Fields

  • ✓Field repair and maintenance tapping
  • ✓General machine shop hand tapping
  • ✓Thread repair and rework
  • ✓Low-volume prototyping and one-off parts
  • ✓Training and apprenticeship tap-and-die work
  • ✓Toolbox and maintenance-kit inclusion for service teams

Key Advantages

  • Taper, plug and bottoming set lets an operator start the thread easily and still finish to full depth, including in blind holes.
  • Simple, versatile design handles both through and blind holes reasonably well without needing two specialized tap types.
  • Lower cost than production-grade spiral taps, which suits occasional-use maintenance and repair work.
  • HSS construction gives reasonable tool life for typical maintenance and field-service tapping volumes.
  • Widely compatible thread class, so threads cut with this tap accept standard off-the-shelf fasteners.

Payment & Shipping

Payment Terms

  • T/T, L/C, PayPal and Trade Assurance accepted
  • 30% deposit, balance before shipment on new accounts
  • Sample orders payable by PayPal or courier freight-collect

Shipping & Packaging

  • Stock sizes: 7–12 days; custom sizes: 15–20 days
  • Sea freight for bulk orders, air or express for samples
  • Individual case, boxed set, or bulk pack packaging available
  • Private-label boxed sets available for tool distributors

Boxed multi-size sets are available at a lower per-tap cost than ordering each size separately; let us know the size range you need covered.

Frequently Asked Questions

  • Q: Do I need all three tap types (taper, plug, bottoming) for a blind hole?
  • A: For a blind hole, starting with the taper tap and finishing with the plug or bottoming tap generally gives full thread depth closer to the bottom of the hole.
  • Q: Is this tap suitable for CNC production tapping?
  • A: It can be used on a drill press or light CNC work, but a spiral point or spiral flute tap is generally recommended for continuous high-speed CNC production.
  • Q: What material is this tap made from?
  • A: Standard HSS is used for most sizes; carbon tool steel is available in economy sets for lighter-duty use.
  • Q: Can you supply a boxed set covering a specific size range?
  • A: Yes, boxed sets can be configured to cover the thread size range you specify.
  • Q: Is a coated version available for longer tool life?
  • A: A TiN-coated version is available on request in addition to our standard bright finish.
Company Profile
Dongtai Jinzhize Metal Products Co., Ltd.
Dongtai Jinzhize Metal Products Co., Ltd.
As Straight Flute Hand Tap Manufacturer and Straight Flute Hand Tap Factory, Dongtai Jinzhize Metal Products Co., Ltd. is a specialized manufacturing facility dedicated to threaded connection products for the automotive and aerospace sectors. We primarily produce Helical Wire Inserts, Self-Tapping Inserts, Key Locking Inserts, Threaded Adapters, Oil Plugs, as well as matching installation taps and tools. Established in 2015, the company operates from a 10,000-square-meter-owned manufacturing plant equipped with hundreds of machine tools and automated production systems. Through years of development, we have built an experienced team of design, development, and production specialists, complemented by a rigorous quality management system and comprehensive after-sales service mechanism. Our products are widely utilized in the automotive industry (including engines and transmissions for both passenger and commercial vehicles), the aerospace industry, and rail vehicle manufacturing. With an annual output value of 153 million RMB in 2024, we possess the capability for a large-scale, stable supply. We are committed to providing customers with highly consistent, traceable products and reliable service support.

Related Products

HISTORY
Evelopment Path
2015
The company was established, identifying threaded connection metal products as its core focus. It concentrated on the R&D and production of thread inserts and supporting tools, laid out related products, deeply cultivated the automotive and aviation fields, and built an initial production and product framework.

2016
Started the construction of its own factory, introduced machine tools and equipment, set up an initial team, completed small-batch trial production of core products, expanded nearby customers, and achieved initial breakthroughs in production capacity.

2017
Optimized product processes, conducted special R&D on products adapted for the automotive field, increased equipment investment, standardized procedures and established quality inspection processes, improved product qualification rates, and accumulated experience in supporting automotive components.

2018
Obtained ISO 9001 quality management system certification, improved the full-process quality control mechanism, enhanced product consistency and reliability, strengthened competitiveness, and expanded high-quality customer resources.

2019
Expanded the factory, added automated equipment to increase production capacity; set up R&D and production teams, promoted the R&D of non-standard customized products, optimized after-sales processes, and built an initial after-sales system.

2020
Expanded the core automotive industry market, initiated cooperation in the aviation and rail vehicle fields; optimized supply chain management to respond to raw material fluctuations and ensure stable production.

2021
Introduced digital production management tools to promote the upgrading of production automation; deepened cooperation with leading automotive component enterprises, optimized product structure and enriched product specifications.

2022
Put a 10,000-square-meter factory into use, equipped with hundreds of automated equipment to achieve large-scale production; optimized the full industrial chain process, improved after-sales services, and provided customized solutions.

2023
Developed thread inserts adapted for new energy vehicles, promoted the precision upgrading of products to meet aviation scenario requirements; initiated the construction of a quality traceability system and increased production capacity and market share.

2024
The output value reached 153 million yuan, with an annual production of 100 million automotive engine thread inserts and 50 million oil plugs; products were widely used in multiple fields, forming a traceable supply system and becoming a high-quality supplier in the segment.

2025
Promoted high-end system certification in the automotive and aviation fields; deepened digital transformation, improved production efficiency, shortened delivery cycles, and strengthened collaborative supply capacity.

2026
Developed special alloy thread inserts and expanded high-end segmented markets; improved green manufacturing, expanded overseas markets, promoted brand upgrading, and transformed into an integrated solution provider.

Corporate Highlights
Documenting the daily life and growth of Jinzhize—from production sites and quality inspections to training sessions and exhibition communications.
Every photo bears witness to our professionalism and collaboration.
  • Dongtai Jinzhize Metal Products Co., Ltd.
  • Dongtai Jinzhize Metal Products Co., Ltd.
  • Dongtai Jinzhize Metal Products Co., Ltd.
  • Dongtai Jinzhize Metal Products Co., Ltd.

Equipment & Tooling

We are equipped with comprehensive production facilities covering forming, machining, wire cutting, grinding, cleaning, assembly, and packaging. We enhance processing consistency through the management of tooling fixtures, cutting tools, and process parameters. Capable of quickly organizing process integration and production scheduling based on diverse product and order requirements, we ensure a stable production rhythm and reliable delivery.

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