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 Ø 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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