TIANSE 2 PCS Deburring External Chamfer Tool Stainless Steel Hex Shank Drill Bit Remove Burr Repair Tools for Drill Bit Eliminate Damaged Extractor Fits Size 8-32 Bolts (Black)

Bought these to help shorten M10 Zinc bolts. Cut the thread length down and used the product, properly mounted on a drill stand, to profile the thread head to accept a bolt, they’re not sharp enough so simply dull the bolt head, useless. Had to do a proper job with a hand file. Great design but not sharp enough to be effective. Recommend buying from a reputable tool manufacturer like Makita, Dewalt etc.Cheap tat - don’t buy.

Awful does not do what it is intended to do completely unfit for purpose. Made of very weak material, spend a few pound extra for an external chamfer cutter.

I had literally one bolt to chamfer a ruined thread on and thought these would be able to manage it, no chance.Save your money and buy this instead, worked perfectly.https://www.amazon.co.uk/Sealey-DB04-External-Deburring-Chamfer/dp/B07RCN9WCL/ref=sr_1_1?crid=173C7ZWWEAMAQ&dchild=1&keywords=sealey+db04+3-19mm+external+deburring%2Fchamfer+tool&qid=1616103937&sprefix=sealey+chamfer%2Caps%2C149&sr=8-1

DONT BOTHER ABSOLUTELY RUBBISH DONT WAIST YOUR MONEY PAY FOR BETTER QUALITY TRIMMER

Handy piece of kit

NOT USED FOR METAL !!!!This product was of very poor qualityMade from chocolate .Used for 2 mins and put in the bin !

Tried using this on some m10 bolts which had been hit on the ends with a hammer, they made no difference what so ever. Reverted back to a belt sander same job works every time.

Awful in every way