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 used for?
It is a precision tool used with a Universal Tool & Cutter Grinder to restore the cutting edges of worn taps, extending their service life and ensuring thread quality.
Which tap sizes can the Pentagon 50K handle?
The Pentagon 50K attachment is designed to handle a wide range of taps from M3 to M50 (1/8” to 2”).
Is this attachment compatible with all tool grinders?
It is designed for Universal Tool & Cutter Grinders. Compatibility depends on the mounting interface and wheel specifications (75–125 mm diameter).
What types of taps can be sharpened?
It supports straight flute, spiral flute, spiral point, and forming taps with adjustable rake and relief angles.
What is the indexing capability?
The attachment features a 4, 6, or 8-position indexing mechanism to accommodate multi-flute taps accurately.
What materials is the attachment made of?
It is constructed from high-grade cast iron or hardened alloy steel for durability and vibration-free operation.
Does it include a micro-adjustment feature?
Yes, it includes a micro-adjustment cross-feed screw for fine-tuned positioning during the grinding process.
What is the weight of the 50K attachment?
The unit weighs approximately 15 kg, making it a robust yet manageable accessory for tool room workstations.
Are accessories included?
Standard packages vary; optional accessories include collet chuck sets, quick-change tap bushes, and digital angle indicators.
How does it improve cost-efficiency?
By allowing in-house re-sharpening of expensive taps, it reduces the need for frequent replacements and minimizes machine downtime.
Who should choose the Pentagon 50K Tap Sharpening Attachment?
Ideal for industrial job shops, maintenance departments, and manufacturing units that require frequent, high-precision tap maintenance.
How does the 50K compare to manual sharpening?
The 50K provides mechanical indexing and controlled relief angles, offering significantly higher precision and consistency than manual hand-grinding methods.
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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


















