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Straight flute hand tap M10x1.25 plug 4 flutes high speed steel bright finish

Helicoil

Helicoil 5444-10 Straight Flute Hand Tap M10-1.25 Plug 4 Flutes

SKU CH-FG28-VB3R8

M10×1.25 metric fine thread tap in high-speed steel with four flutes and plug chamfer for through-hole cutting

  • Product typeHole, Drill, Bore & Wire Gauges
  • M10x1.25 metric fine thread cuts cleanly
  • Plug chamfer starts threads easily in through-holes
  • Four straight flutes clear chips efficiently
  • High-speed steel body resists wear during tapping
  • 00 mm overall length reaches deeper holes

Thread Repair Tap M10 × 1.25

This Heli-Coil STI tap cuts internal threads sized for M10 × 1.25 screw-thread inserts. The straight-flute design with four flutes suits hand tapping in through-holes or blind holes. Overall length is 86.00 mm with a 42.00 mm thread length. Bright uncoated high-speed steel construction handles general-purpose threading tasks.

Mechanics Restoring Damaged Metric Fine Threads

The plug chamfer and D10 limit produce standard-fit threads for helical-coil insert installation. Technicians repairing stripped M10 × 1.25 holes in aluminium or steel components will find the geometry appropriate. Shops needing bottoming-chamfer taps for blind holes close to a shoulder should select a different chamfer style.

Plug Chamfer D10 Limit Determines Fit

The plug chamfer starts threads easily but does not cut to the bottom of a blind hole. The D10 thread limit controls the pitch-diameter tolerance of the tapped hole so the finished insert meets the required fit class. Verify that the application calls for a plug chamfer and D10 limit before purchasing.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $53.99
Pricier than about 74% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameHelicoil
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

Will the M10x1.25 thread size match the existing holes in my older fixture?

The tap cuts a metric fine M10x1.25 thread with a D10 limit and a 42.00 mm thread length, so it matches holes made to that exact specification.

How can I confirm the plug chamfer is cutting correctly once I start tapping?

A plug chamfer with four straight flutes should start easily and produce clean, continuous chips; if the tap binds or chips are torn, the alignment or lubrication needs adjustment.

Does the 86.00 mm overall length include a handle, or must I buy a tap wrench separately?

The 86.00 mm length is the tap itself; a suitable tap wrench or T-handle is not included and must be purchased separately.

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