General Catalogue

COUNTERBORING SYSTEM

Insert drills, Pilots. Counterbores,Countersinks and Toolholders
GROUP 0: From Diam. 7 to Diam. 24
GROUP 1: From Diam. 10 to Diam. 40
GROUP 2: From Diam. 16 to Diam. 85

BACKSPOTFACING SYSTEM

Cutters to back spotfacing, Arbors, Rolling Pilots
Back Spotfacing:
GROUP 6: From Diam. 12 to Diam. 26
GROUP 9: From Diam. 16 to Diam. 34
GROUP 14: From Diam. 24 to Diam. 41
GROUP 20: From Diam. 34 to Diam. 60
Back and Forward Spotfacing:
GROUP 30: From Diam. 60 to Diam. 80
GROUP 40: From Diam. 82 to Diam. 125

COUNTERSINKS

Countersinks,Chamfering cutters and Deburring Tool in HSS 5% Cobalt, TiN,TiAlN o H.M. K15
Straight Shank and Morse Taper Shank.
90°,60°,100° e 120°
3 FLUTES COUNTERSINKS
1 FLUTE CHAMFERING CUTTER
DEBURRING TOOL WITH HOLE
PIPES DEBURRERS EXTER/INTER

COUNTERSINKS FOR DRILL

The Polledri countersink for drill 90° HSS, permits you to drill and countersink simultaneous.
The drill countersink adapts to most standard twist drills within the range from Ø 3 to Ø 30.

COUNTERSINKS FOR TAP

The Polledri countersink for tap 120° HSS, permit threading and bevelling in one operation.
It can be assembled on every kind of normal taps tool to be found from M2 to M24 GAS – UNC/UNF-W, on the straight type and in some case, of the slow spiral type till 15° with 2, 3, 4 grooves.
NOT SUITABLE FOR TAPS WITH SPIRAL POINT.
For Taps with 2-4 grooves DIN371 Shank
For Taps with 3 grooves DIN371 Shank
For Taps with 2-4 grooves DIN376 Shank
For Taps with 3 grooves DIN376 Shank

CONICAL DRILLS

Conical Drills and Multi-Step Drills
in HSS 5% Cobalt and with TiN coated treathment
Shanks with 3 flates.
CONICAL DRILLS
MULTI-STEP DRILLS