Which screw size is this counterbore designed for?

This counterbore is designed for M1,6 socket head cap screws in accordance with DIN 373.

What are the dimensions of the pilot and countersink head?

The pilot has a diameter of 1,7 mm and the countersink diameter is 3,3 mm. The overall length is 56 mm.

What does the fine fit designation mean on this DIN 373 tool?

Fine fit indicates that the 1,7 mm pilot fits tightly into precision through-holes drilled for M1,6 bolts.

What type of shank does this tool feature?

It features a straight cylindrical shank of 3,3 mm, fitting standard drill chucks and collets.

What materials can be machined with this HSS-E tool?

The cobalt-alloyed HSS-E steel provides high heat resistance and durability when machining steel, cast iron, and stainless steel.

PHANTOM 433200160 HSS-E head countersink drill bit DIN 373 180°' fine fit M1'6 1'7x3'3mm

Name: PHANTOM 433200160 HSS-E head countersink drill bit DIN 373 180°' fine fit M1'6 1'7x3'3mm
Brand: PHANTOM
SKU: 51252665
Price: 29.14 EUR
Availability: PreOrder

Supplier number: PHANTOM 433200160 | EAN 8716563361701

29.14 tax incl.

€24.08 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

Ordered before 20:00 - delivered as of 14/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Precise counterboring by Phantom

Practical benefits

Perfectly flat seats: The 180° cutting angle compliant with DIN 373 lets you sink socket head cap screws completely flush into through-holes.
High heat resistance: Crafted from robust HSS-E cobalt steel, it ensures you achieve excellent wear resistance and extended service life in metals.
Accurate pilot guidance: The integrated 1,7 mm fixed pilot centers the tool accurately to deliver clean M1,6 fine-fit counterbores without runout.

In a nutshell

The right choise for

With the Phantom 43.320 hss-e Co counterbore, you sink socket head cap screws completely flush into through-holes. The 180° cutting angle compliant with din 373 combined with the integrated 1,7 mm fixed pilot ensures precise concentric alignment for clean M1,6 fine-fit counterboring without runout. Made from cobalt-alloyed hss-e steel, this tool provides high heat and wear resistance for extended service life when machining steel, cast iron, and stainless steel. The straight 3,3 mm cylindrical shank fits standard drill chucks and collets, giving you the control and precision needed for demanding fine-tolerance assemblies.

Product information FAQ

€29.14

tax incl.

Key features according to our expert

Countersink angle: 180 °
Small diameter: 1,7 mm
For thread size: M1,6
Shank size: 3,3 mm
Shank type: Cylindrical
Large diameter: 3,3 mm

Product Description:

Phantom HSS-E Counterbore DIN 373 180° fine tolerances
DIN 373, straight shank, fine tolerances for through holes

All Features

Countersink angle: 180 °
Small diameter: 1,7 mm
For thread size: M1,6
Shank size: 3,3 mm
Shank type: Cylindrical
Large diameter: 3,3 mm
Variant: fine tolerances
Total length (l1): 56 mm
Tool material: HSS-E
Diameter ø (d1): 3,3 mm
Diameter ø (d3): 1,7 mm
Shank ø (d2): 3,3 mm
Surface: Bright
Norm: DIN 373
Size thread (m): 1,6

Brand PHANTOM
51252665
EAN 8716563361701
Supplier number PHANTOM 433200160

Frequently asked questions about this product

Answered by specialists

Which screw size is this counterbore designed for?: This counterbore is designed for M1,6 socket head cap screws in accordance with DIN 373.
What are the dimensions of the pilot and countersink head?: The pilot has a diameter of 1,7 mm and the countersink diameter is 3,3 mm. The overall length is 56 mm.
What does the fine fit designation mean on this DIN 373 tool?: Fine fit indicates that the 1,7 mm pilot fits tightly into precision through-holes drilled for M1,6 bolts.
What type of shank does this tool feature?: It features a straight cylindrical shank of 3,3 mm, fitting standard drill chucks and collets.
What materials can be machined with this HSS-E tool?: The cobalt-alloyed HSS-E steel provides high heat resistance and durability when machining steel, cast iron, and stainless steel.