Pentagon Tap Re-Sharpening Attachment for Universal Tool & Cutter Grinder machine 50K
Precision accessory for regrinding straight and spiral fluted taps on universal tool and cutter grinders. Ensures correct thread geometry and extended tool life. • Model: 50K • Max Tap Length: 250–300 mm • Rake Angle: Adjustable as per tap geometry • Body Material: High-grade cast iron / hardened alloy steel
Specifications
For: 50K- Product Name
- Tap Grinder Attachment
- Model
- 50K
- Tap Size Range
- M3 to M50 (or equivalent 1/8” to 2”)
- Tap Type
- Straight flute, spiral flute, spiral point, forming taps
- Max Tap Length
- 250–300 mm
- Clamping Type
- Collet/3-jaw/quick-change bush type (depending on model)
- Relief Angle
- 5°–25° adjustable
- Rake Angle
- Adjustable as per tap geometry
- Chamfer Grinding
- Yes
- Spiral Tap Grinding
- Pitch-accurate helical holding mechanism
- Body Material
- High-grade cast iron / hardened alloy steel
- Slides
- Precision ground dovetail or linear slide
- Indexing Mechanism
- 4/6/8-position indexing for multi-flute taps
- Swivel Base
- 0–90° adjustable
- Cross Feed
- Micro-adjustment screw
- Suitable Wheel
- Diamond / CBN / Aluminum Oxide
- Wheel Diameter
- 75–125 mm (depending on grinder)
- Wheel Width
- 6–20 mm
- Dimension
- 350x200xx200 mm
- Weight Approx
- 15 Kgs
Ideal for Maintenance & Tool Rooms
- Extends tool life by restoring worn taps instead of replacement
- Reduces downtime in high-volume machining and manufacturing environments
- Ensures consistent thread quality through precise re-sharpening
- Suitable for job shops requiring flexible, multi-size tap maintenance
- Enhances cost-efficiency by maximizing the utility of existing tap inventory
Robust Construction & Compatibility
- Body constructed from high-grade cast iron or hardened alloy steel
- Compatible with diamond, CBN, or aluminum oxide wheels (75–125 mm dia)
- Wheel width compatibility ranges from 6 mm to 20 mm for versatile grinding
- Clamping options include collet, 3-jaw, or quick-change bush types
- Compact footprint of approx. 350x200x200 mm fits standard workstations
Precision Engineering & Adjustability
- Relief angle adjustable from 5° to 25° for optimal cutting performance
- Swivel base offers 0–90° adjustment for complex angular grinding
- Indexing mechanism supports 4, 6, or 8-position setups for multi-flute taps
- Micro-adjustment cross feed screw enables fine-tuned positioning
- Precision ground dovetail or linear slides ensure smooth, backlash-free movement
Optional Accessories
- Collet chuck set
- Quick-change tap bush set
- Digital angle indicator
- Diamond dresser * Workpiece support stand
Versatile Tap Grinding Capabilities
- Handles straight, spiral flute, spiral point, and forming taps
- Covers tap size range from M3 to M50 (1/8” to 2”) max length 250–300 mm
- Includes precision chamfer grinding for sharp, accurate edges
- Pitch-accurate helical holding mechanism ensures correct spiral geometry
- Adjustable rake angle adapts to specific tap cutting requirements
More questions buyers ask
What is a tap re-sharpening attachment?
It is a precision tool designed to be mounted on a Universal Tool & Cutter Grinder to restore the cutting edges of worn taps, extending their service life.
Which tap sizes can the Pentagon 50K handle?
The 50K model is versatile, handling tap sizes from M3 to M50 (1/8” to 2”).
What types of taps can be sharpened?
It supports straight flute, spiral flute, spiral point, and forming taps.
Is the relief angle adjustable?
Yes, the relief angle is adjustable from 5° to 25° for optimal cutting performance.
What is the indexing mechanism?
It features a 4, 6, or 8-position indexing mechanism suitable for various multi-flute taps.
What material is the body made of?
The body is constructed from high-grade cast iron or hardened alloy steel for durability.
Does it require a specific grinder?
It is designed for use with Universal Tool & Cutter Grinders.
What is the weight of the attachment?
The attachment weighs approximately 15 kg.
Can it handle different flute counts?
Yes, the indexing mechanism allows for 4, 6, or 8-position setups to accommodate different flute counts.
What accessories are available?
Optional accessories include collet chuck sets, quick-change tap bush sets, digital angle indicators, and diamond dressers.
Who should choose the Pentagon 50K Tap Sharpening Attachment?
It is ideal for industrial workshops, tool rooms, and job shops looking to reduce costs by re-sharpening taps instead of replacing them.
How does the 50K compare to manual sharpening?
The 50K provides consistent, repeatable precision and correct spiral geometry that manual sharpening cannot match, ensuring thread quality.
Is this attachment suitable for high-volume production?
Yes, it helps reduce downtime and maintains consistent thread quality in high-volume manufacturing environments.
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Full description
Precision accessory for regrinding straight and spiral fluted taps on universal tool and cutter grinders. Ensures correct thread geometry and extended tool life. • Model: 50K • Max Tap Length: 250–300 mm • Rake Angle: Adjustable as per tap geometry • Body Material: High-grade cast iron / hardened alloy steel


















