Rush drill and tool grinders, models 252

Ref Price:
Loading Port:
China main port
Payment Terms:
Min Order Qty:
1 unit
Supply Capability:
100 unit/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

The Models 250A, and 252 have a capacity of 3/32" to 2" diameter.

The Model 252 is the most versatile drill and tool grinder available today. The 252 can grind odd-numbered fluted tools (1, 3, 5 & 7) as well as even numbered fluted tools (2, 4, 6, 8, & 10). This is achieved with the use of a unique dual-cam workhead. The inner cam rotates at 2:1 gear ratio to grind even numbered fluted tools. The outer cam rotates at a 1:1 ratio for odd-numbered fluted tools.

The Model 252 is available in manual, semi-automatic and automatic in-feed versions.

 Selected Optional Accessories

Semi-Automatic Version

The power-driven workhead of the semi-automatic version offers a quiet, smooth rotation of the workhead.    Manual effort is reduced for heavier grinding and spin grinding operations.  Spark out is allowed to occur by using a minimum of manual infeed along with a reduction in workhead rotation speed.  The speed is controlled by a conveniently located valve; the adjacent four-way valve allows grinding in either direction.  A hand knob on the workhead is used for indexing and setup.

Automatic Infeed System

The semi-automatic versions can be equipped with the automatic infeed system.  This can increase productivity by allowing the operator to do other nearby tasks while the drill is being ground.  The system allows manual or semi-automatic grinding of all tool grinding, and use of the automatic infeed for standard drill points, countersinks and reamers.  The grinding rate is adjustable and the counter can be preset for 1-99 cycles.  An electroplated CBN wheel (standard) is used with the automatic infeed and requires no dressing.  Larger, three-phase motors are standard and an ammeter is provided to monitor the grinding load.

Overhead Wheel Dresser

Timesaving option allows truing of the grinding wheel O.D. without changing the setup. (Not for use with diamond or CBN wheels)


Sealed linear bearing with hardened guide shafts
Downfeed with ball detent in .001" increments
Hardened downfeed screw with wiper seal
High-quality diamond included for truing standard and ceramic wheels

Air Bearing Fixture

Air Bearing Fixture on Model 250A Drill and Tool Grinder
Allows precision sharpening of endmills, reamers, shell mills and other cutters.  The spindle is supported with a thin film of air providing nearly frictionless motion, resulting in a smooth, even grind.  The fixture quickly mounts on the Model 132C, 250A, 252, 380 or 382S grinders, or is available with a universal base to fit most tool and cutter or surface grinders.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:what are some very affective exercises without machinery?
I am not one of those people that post random fitness sites or whatever else they post on here, but just to let you know whats worked for me is on Youtube, this guy Mike Chang does a bunch of awesome home workout videos that help a lot in fat burning. You go to Youtube and type in Sixpackshortcuts, and it should bring you to his channel. Just check it out and some of this vids real quick!
Q:how can i go about trying to film robotics, machinery and technology?
use a robot to hold the camera and move the camera when the robot being filmed is moving.
Q:Explain why machinery used on a.c supply is usually rated in kVA instead of kW.?
Because most machinery present an inductive load and so has a less-than-unity power factor. The current peak lags the voltage peak in the two waveforms. However, as the current is drawn at a lower voltage (away from the peak), the load current is higher to get the same overall power to the machine. eg. if it took 20% more current to make up for the voltage phase offset, a 1000W load would be taking the same current as a 1200W load at unity power factor. That's the VA rating, it's equivalent to watts at unity power factor.
Q:When did Tony Stark get the powers to control machinery with his mind?
its the way he made his suits. its not mind control its just that he is a genies.
Q:Are humans machineries?
One can say like that about workaholics.
Q:I have Crohns disease should I be working around machinery i.e. screw machines?
Q:Construction machinery, switch to do auto machinery, then can have a good development?
Not recommended to 3 years working experience too little, as the saying goes, they come, a rolling stone gathers no moss! By the way, what's your bilingual ability, such as English, and the ability to hear and speak well? At present high salaries require this skill! The people who work in the same place do not develop, and the people who always change jobs do not develop!
Q:Elijah McCoy oilin machinery?
drug overdose hes buried in Detroit Michigan
Q:Has political Party machinery and loyalty what has almost destroyed American democracy?
Absolutely correct!
Q:What can you make out of wood without machinery ?
Camp Fire!

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range