Description
Some cups in Snap-on’s wheel torque chart serve three or four sockets. The Snap-on PTQ1WTCPBWD2 deep well cup serves just one, the BWDM412. That narrow match is the reason to buy it. A fleet that already runs this socket gets a cup made to seat it, so the pneumatic wrench has a firm reaction point at the wheel.
One socket, one cup: the BWDM412 link
Page 354 of Snap-on’s CAT1500i catalog lists the BWDM412 beside this cup and nothing else. By contrast, its twin, the PTQ1WTCPBWD1, serves the BW626A and BWD482 sockets. So the last digit of the part number matters. Before you order, read the stamp on the socket in your wheel bay. If it says BWDM412, the PTQ1WTCPBWD2 is the cup to quote. If not, another row of the chart will suit you better.
Where the Snap-on PTQ1WTCPBWD2 deep well cup sits in a PTM kit
A wheel set has four parts: the PTM wrench, a wheel torque extension, the cup and the socket. Snap-on states that the extension and cup combine to create the reaction point on truck and heavy equipment lug nuts. For example, the same chart names the WTE4G72L9 9 in wheel torque extension for the PTM740, a 147 to 740 ft-lb model. The PTM series as a whole spans 74 to 4,500 ft-lb, so note which model your shop runs. Then ask Lost in HCM to confirm the full stack with the PTQ1WTCPBWD2 before delivery.
Mixed fleets and the PTQ1WTCPBWD2
Many depots in Vietnam run trucks from several makers and several decades. As a result, one wheel bay may need standard cups, SIM deep cups and BW-series cups side by side. In that case, label each cup with the socket number it serves. Also hang each cup and socket pair together on the shadow board. That habit stops a busy tech from forcing the wrong socket into the PTQ1WTCPBWD2.
Quick checks on a reaction cup
Before each job, look over the PTQ1WTCPBWD2 rim and inner bore for cracks, burrs or flat spots. Next, drop the BWDM412 in and make sure it sits square and turns freely. Clear out grit and rust flakes, because debris can tilt the socket in the cup. Finally, keep hands away from pinch points, since a PTM builds high reaction force. Follow the PTM manual for air pressure and setup.
Quote the Snap-on PTQ1WTCPBWD2 deep well cup
Lost in HCM supplies this cup and handles every quote, while SMK Vietnam only lists it. Send them your PTM model, the extension you use and a photo of the socket stamp. Then request a PTQ1WTCPBWD2 quote from Lost in HCM. For other reaction parts, browse torque multipliers and PTM accessories, or contact SMK Vietnam with a question.
PTQ1WTCPBWD2: buyer questions
Which socket goes with the PTQ1WTCPBWD2?
Snap-on’s chart names a single socket for it: the BWDM412.
How does it differ from the PTQ1WTCPBWD1?
The BWD1 serves the BW626A and BWD482 sockets. This cup serves the BWDM412, so pick the cup by the socket number you own.
Does Snap-on publish a torque rating for the cup?
Not in the CAT1500i chart. Plan the job around the rating of your PTM and its wheel extension instead.
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