24 tooth (1.2" pitch diameter)
20* pressure angle for 1/2" or wider racks
20t diametral pitch
14mm bore with 5mm keyway
2 each 1/4-20 setscrews @ 90*
$55 each (4 for $220) plus $10.60 USPS small box shipping
Email: gcnc411@gmail.com to order or for more info