If any extractor is difficult to get a bite on a rounded out socket will a little hammering on the extractor damage it?

A few taps to "set" the extractor are fine. As you'll note, these are wedge-shaped (tapered) to jam the extractor into the bolt to grip it. Work slowly; i.e., start with a socket or regular wrench to grip and turn the extractor counter-clockwise after it's seated to remove the bolt. DON'T use a cordless drill to speed up the process; it will likely chew things up, making it worse (this is true with any extractor). These are also referred to as "easy-outs"; if used properly, they can save the day. These DO NOT work well with plastic pipe fittings, as they tend to expand the threads of the fitting, jamming it in even tighter. As Robert George mentions, don't drill the hole bigger than one-half (1/2) the diameter of the bolt you're trying to remove, as that will expand the metal threads to jam it in even tighter. On the smaller ones, you may need a sliding T-handle wrench (not included with this set) to grip the extractor to turn it. You can buy those separately (0-1/4" opening and 1/4"-1/2" opening), or you may already have them if you own a tap and die (thread-cutting) set.

Does it include a 25/32

Yes it does. It has all sizes from 1/8" through 7/8" in 1/32" increments.

Is that 3/8" drive on the back of these?

These extractors do not have a 3/8" drive in the back of them. Instead, they have a Hew-head and are designed to be used with either a 1/2," 5/8", 3/4", 7/8" or 1" socket or spanner (depending on screw size being extracted) to drive them.

I have a 5 mil recessed hex bolt in a brake caliper that is stripped out. Can I use this to get the bolt out ?

Recommended tool to use would be a EX-2 Spiral Screw Extractor Part number 53402.

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IRWIN Screw Extractor Set, Hex Head, Multi-Spline, 25-Piece (53227)

Product ID: 1905831

Details

Brand
IRWIN
Finish Type
Brushed
Item Length
9 Inches
Material
Blend
Number of Pieces
1

🌀Aggressive left-hand spiral grip

📏Etched sizes & drill bit guide

🔩25-piece hex & multi-spline set

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Description

🔧 Break free from stuck screws—extract like a pro, every time!

MAXIMUM GRIP POWER - Left-hand spiral design intensifies grip as torque increases—no slip, no stress.
UNMATCHED VERSATILITY - Tackle broken studs, bolts & socket screws with one comprehensive set.
DURABILITY MEETS PORTABILITY - Heavy-duty high carbon steel tools housed in a rugged, organized carrying case.
PRECISION AT YOUR FINGERTIPS - Extractor & drill bit sizes etched on each tool for quick, error-free selection.
TRUSTED QUALITY MADE IN USA - Over 1,500 5-star reviews prove this set is the go-to for pros and DIYers alike.

The IRWIN HANSON 25-piece Hex Head Multi-Spline Screw Extractor Set is engineered for high-torque removal of broken studs, bolts, and socket screws. Featuring an aggressive left-hand spiral design for superior grip, each extractor is etched with size and drill bit info for precision. Crafted from durable high carbon steel and housed in a heavy-duty case, this USA-made set is a must-have for professionals and serious DIYers aiming to avoid costly screw replacements.

Specifications

ASIN	B0002SRG66
Best Sellers Rank	#366,208 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #379 in Tap Extractors
Bit Compatibilities	Bolts, Socket Screws, Studs (various sizes)
Brand Name	IRWIN
Customer Reviews	4.6 4.6 out of 5 stars (1,535)
Drive Bit Shank Style	Hex
Drive System	Hex, Spline
Finish Types	Brushed
Global Trade Identification Number	00024721532275
Included Components	Unit^Instruction Guide
Item Length	9 Inches
Item Type Name	EXTRCTR 25PC SET MULTI SPLINE
Item Weight	16 ounces
Manufacturer	IRWIN
Manufacturer Part Number	53227
Manufacturer Warranty Description	Limited lifetime
Material Type	Blend
Model Number	53227
Number of Pieces	1
UPC	100069446563 753956451081 247215322750 024721532275 971473131976 031113161920 031112511139 765245631401 088021739512 787721825029 782386197115 784497166332
Unit Count	1.0 Count

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$510.75

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

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TrustScore 4.5 | 7,300+ reviews

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