Automatic Reversible Safety Tapping Attachments (Model TC)

  • Are suitable for use with standard taps on any drilling machine for right or left hand tapping of blind or thru holes.
  • Have adjustable friction-clutch to avoid tap breakage.
  • Have self-centering chuck to hold tap ture.
  • Are extremely useful for mass production.
  • Have perfect automatic reverse mechanism with double backout speed.
  • Are made of alloy steels with all moving parts hardened and ground to precision.
  • Have all parts interchangeable and easily replaceable.

Batch quantities or mass production of tapping by this attachments could be achieved accurately on existing machine tool, like a drill, without requiring any modifications.
Having versatile application every machine shop, they dispense with laborious hand tapping and threading and use of expensive machines.

Capacities of Tapping Attachments Type TC:

Model No. Whitworth thread in Inch Metric thread in MM Whitworth pipe threaded in Inch Shank Morse Taper
TC-0 1/16-3/16 2-4 1/8 1
TC-1 1/8-3/8 3-10 1/8 1 or 2
TC-2 1/4-5/8 6-16 1/8-1/4 2 or 3
TC-3 5/16-3/4 8-18 1/8-3/8 3
TC-4 3/8-1 10-24 1/8-5/8 3 or 4
TC-5 9/16-1.1/4 14-30 1/4-3/4 4
Note : Taps do not part of Tapping Attachment Supply


Reversible Tapping Attachments (Model HR)

"TACO" Patented reversible tapping attachment with robust construction offers following advantages :

  • Usable on every vertical drilling machine or machines with rotating non-reversing spindles.
  • Right or left hand tapping without modification.
  • Complete protection against tap breakage ensured by a ultrasensitive and smooth operating ball-clutch.
  • Forward and reverse ball drive design transmits rotational power to the tap and disengages smoothly and silently.
  • Axial float ensures smooth tapping and better thread profile.
  • Cushioned drive eliminates the possibility of cross threadings during roughing and finishing taps and ensures gauge perfect thread.
  • A planetary gear reversing mechanism transmits smooth positive reverse to the tap retraction and it retracts 75% more faster than it enters.
  • Accurate depth control by means of its acurate neutral mechanism.
  • Batch quantities or mass production of tapping can be achieved accurately by this attachment.
  • Having versatile application in every machine shop, it dispensess with laborious hand tapping and use of expensive machines.
Rubber Collet for HR Model
  • Rubber Collet and adjustable left and right nuts to adopt all tap sizes, within an attachment's rated capacity.




















Model Capacity Rubber Collets Shank
(Female)
Std.
Arbur
Standard Optional
(Tap Shank mm)
HR-1 1.4 - 7 mm
1/16" - 1/4"
S 161 (2.5 - 4.5)
S 171 (4.5 - 6.5)
S 151
(1.2-5)
JT 33 JT 33/MT 1
or
JT 33/MT 2
HR-2 3-12 mm
1/8"-1/2"
S 212 (3.5-6.5)
S 222 (6.5-10)
S 232
(2-4.5)
JT 6 JT 6/MT 2
or
JT 6/MT 3
HR-3 8 -20
5/16" - 3/4"
S 143 (4.5 - 10)
S 453 (10 - 15)

JT 3 JT 3/MT 3
or
JT 3/MT 4
HR-4 14-30
9/16"-1.1/8"
S 613 (9-16)
S 623 (16-23)

JT 4 JT 4/MT 4
or
JT 4/MT 5
Note : Non Reversible Tapping attachments on request.
------.---Bigger sizes on request.


Self-Opening Die-Heads
Model SDH (Stationery type)
For High Precision Snap Threading

  • Most economical thread cutting tool of simple design

  • Achieve mass production with uniform high accuracy

  • Most suitable for cutting right and left hand threads of any form and pitch on any material.

  • Easy to operate-can be handled by semi-skilled labour

  • Reversal of the direction of working spindle not necessary

  • Fully enclosed type-prevents ingress of chips and dirt

  • All components made to close tolerance - easy interchangeability

  • Incorporate very simple arrangement for fixing and removal of chasers

  • Rugged construction - long service life

Model Capacity Cutting of
short fine
threads upto
Shank Dia.

Metric
& S.I.
mm
Withworth
& American
inch
Pipe
inch
Dia.
mm
Length
mm
mm inch
SDH-1 2-8 3/32-5/16 -- 11 12 20 5/8"
SDH-2 4-14 3/16-9/16 1/8-1/4 16 24 30 1 or 3/4"
SDH-3 6-18 1/4-3/4 1/8-1/2 22 35 40 1.1/2"
SDH-4 10-24 3/8-1 1/8-3/4 30 40 40 1.1/2"
SDH-5 12-30 1/2-1.1/4 1/4-1 35 45 60 2.1/8"
Note :Die-heads are supplied without chaser sets.

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