Combined Drills & Taps
Combined Drills & Taps
Combined Drills & Taps
Designed for use during the installation of feed connections etc in gas and water mains.
These tools are manufactured from quality carbon chrome tool steel or high speed steel
with ground threads and special anti-shock treatment. High speed steel drill taps and
cups give better life on cement lined pipes and are usually preferred where the drilling
operation is power assisted.
COMBINED DRILLS & TAPS
All tools are suitable for general use in Underpressure Machines for the installation of feed connections in Gas and Water Mains;
common makes of machine are Talbot, Peart/Pass, ALH and Wask.
311A
311A BSP • • • • • • BSP • • •
HSS
311T
311P BSP • • • • • • BSPT • • •
HSS
311 BSP • • • • • •
Drill taps with a screw ended spigot and pilot drill to accept a
high speed steel cup are available with pass style shanks. The
311T BSPT • • •
pilot drill provides support during drilling and therefore reduces
oversize drilling and minimises ovality.
Drill taps with a screw ended spigot to accept a carbon chrome TOOL NO SUPER DRILL AVAILABILITY
tool steel cup are available with pass style shanks. The pilot drill AND TAP SETS THREAD 1.1/4 1.1/2 2
provides support during drilling and therefore reduces oversize 312B
drilling and minimises ovality. BSP • • •
TAP
TOOL NO SCREWED - ENDED AVAILABILITY 312C HSS CUP DRILL
TO SUIT 312B • • •
DRILL TAPS THREAD 3/4 1 1.1/4 1.1/2 2 2.1/2 3 CUP
Hole saw drill taps have a carbon steel tap and are fitted with a
special HSS hole saw. This design allows holes to be drilled and
tapped very quickly with less effort than is required with other styles.
TOOL NO HOLE SAW AVAILABILITY INSTRUCTIONS FOR ORDERING DRILL TAPS
313B
TAP
DRILL TAPS THREAD
BSP
3/4
•
1
•
1.1/4
•
1.1/2
•
2
•
! 1 In view of the visual similarity of many types of shank, always state the
machine and model use.
2 Specify type of pipe to be tapped, ie: cast iron, asbestos cement,
concrete lined, etc.
SPECIAL HSS
313S
HOLE SAW
HOLE SAW • • • • •
TO SUIT 313B
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