thread chaser/tap/heli coil
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From: Kingsland, GA
thread chaser/tap/heli coil Anyone know where to get these (good ones that is)? A couple of my head bolt holes need to be cleaned and half of my bellhousing bolt holes need to be heli coiled.
http://www.mcmaster-carr.com
Got my helicoils there for my bellhousing to block bolt holes. They had the right size drill bits (10.5mm metrics), the tap, and the helicoil installation tool as well.
Got my helicoils there for my bellhousing to block bolt holes. They had the right size drill bits (10.5mm metrics), the tap, and the helicoil installation tool as well.
Thread Starter
TECH Fanatic
iTrader: (52)
Joined: May 2004
Posts: 1,354
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From: Kingsland, GA
Originally Posted by Camaroholic
http://www.mcmaster-carr.com
Got my helicoils there for my bellhousing to block bolt holes. They had the right size drill bits (10.5mm metrics), the tap, and the helicoil installation tool as well.
Got my helicoils there for my bellhousing to block bolt holes. They had the right size drill bits (10.5mm metrics), the tap, and the helicoil installation tool as well.
Here's pasted from my email invoice... 
1 1
Each 93060A061
Economy Helical Insert Installation Tool M10-1.5 Internal Thread, Mandrel Style
$18.21 $18.21 today
2 2
Packs 90296A345
18-8 SS Screw-Lock Helical Insert M10-1.5 Internal Thread, 20mm Length, Packs of 5
$5.88 $11.76 today
3 1
Each 91709A205
Helical Insert Tap M10-1.5 Internal Thread, Plug Style
$15.30 $15.30 today
4 2
Each 2958A152
General Purpose Hss Jobbers' Twist Drill Bit Black Oxide, 10.5mm Sz, 133mm L O'all, 87mm L Flute
$6.09 $12.18 today
and I used these bolts (McCleod Bellhousing, need allen cap bolts because hex head bolts don't have enough clearance)
1 1
Pack 91290A520
Metric Class 12.9 Alloy Socket Head Cap Screw M10 Thread, 25mm Length, 1.5mm Pitch, Packs of 25
$7.02 $7.02 today
Note that I didn't really *need* 2 packs of helicoils, or 2 bits, but I bought them because (1) it's my luck I'd break the damn bit, and (2) because I'll probably need the helicoils again in the future.
I had never helicoiled anything before, and it was a cinch with these tools. The worst part was dropping & reinstalling my K-member, because I couldn't get a drill up in there to drill out the holes with the engine in place.
Also note: the helicoils are only 20mm in depth. This would be a problem with stock bolts, unless you put washers or a thick round shim under the heads, or somehow cut the tang (I think they have tang cutters, but mo' money mo' money mo' money...).
1 1
Each 93060A061
Economy Helical Insert Installation Tool M10-1.5 Internal Thread, Mandrel Style
$18.21 $18.21 today
2 2
Packs 90296A345
18-8 SS Screw-Lock Helical Insert M10-1.5 Internal Thread, 20mm Length, Packs of 5
$5.88 $11.76 today
3 1
Each 91709A205
Helical Insert Tap M10-1.5 Internal Thread, Plug Style
$15.30 $15.30 today
4 2
Each 2958A152
General Purpose Hss Jobbers' Twist Drill Bit Black Oxide, 10.5mm Sz, 133mm L O'all, 87mm L Flute
$6.09 $12.18 today
and I used these bolts (McCleod Bellhousing, need allen cap bolts because hex head bolts don't have enough clearance)
1 1
Pack 91290A520
Metric Class 12.9 Alloy Socket Head Cap Screw M10 Thread, 25mm Length, 1.5mm Pitch, Packs of 25
$7.02 $7.02 today
Note that I didn't really *need* 2 packs of helicoils, or 2 bits, but I bought them because (1) it's my luck I'd break the damn bit, and (2) because I'll probably need the helicoils again in the future.
I had never helicoiled anything before, and it was a cinch with these tools. The worst part was dropping & reinstalling my K-member, because I couldn't get a drill up in there to drill out the holes with the engine in place.
Also note: the helicoils are only 20mm in depth. This would be a problem with stock bolts, unless you put washers or a thick round shim under the heads, or somehow cut the tang (I think they have tang cutters, but mo' money mo' money mo' money...).
