FYI, MTC = straight shaft;  MTJ = 30 deg bent shaft;  MTF = 90 deg bent shaft

Techni-Tool numbers are in parentheses (244PRnnn):

MT-2 (244PR070)   4.8" Micro Tool Handle, Black
MTC-100 (244PR072), MTJ-100 (244PR108), MTF-100 (244PR102)  Ultra Tungsten Needles

MTC-110 (244PR074), MTJ-110 (244PR110)   Stainless Steel Needles, sharp
MTC-111 (244PR076)   Stainless Steel Needles, blunt
MTC-115 (244PR078)  Stainless Steel Needle Hook, 90 deg
MTC-120 (244PR080)  Stainless Steel Needle Hook, 180 deg
MTC-185 (244PR082)   Hardened Stainless Steel Knives, .060" cutting edge
MTC-200 (244PR090), MTJ-200 (244PR114)  Hardened Stainless Chisels
MTC-440 (244PR098)   Tungsten Carbide Scribe
MTC-195 (244PR195), MTC-196 (244PR084)  Hardened Stainless Steel Lances, double .085" & .135" cutting edges

MTC-451 (244PR100), MTJ-451 (244PR122)  Diamond Scribes, .020" diam. pin, 60 deg included angle

MTJ-250 (244PR116)   Stainless Steel Spatula
MTC-270 (244PR096)   MicroBrush, Single Synthetic Bristle

MP-1-B (244PR001), MP-1-R (244PR002)   Black & Red Electronic Test Probe Handles with 3' wire & banana plug

MPC-500 (244IE500)    Tungsten Electronic Test Probe
MPC-510 (244PR051)  .005" Wire Electronic Test Probe
MPJ-520 (244TI520)   Gold Plated Stainless Steel Electronic Test Probe

MTK-15 (244PR015)   Wood Box Kit with 8 tools and a 4.8" handle

Kits containing two identical tools and a 4.8" handle in a plastic box:
KMTC-100 (244PR018)  Tungsten Needle Kit, Straight
KMTC-110 (244PR020)  Stainless Needle Kit
KMTC-115 (244PR024)  Stainless Hook Kit
KMTC-185 (244PR028)  Stainless Knife Kit
KMTC-186 (244PR030)  Stainless Knife Kit
KMTC-200 (244PR036)  Stainless Chisel Kit
KMTC-270 (244PR042)  MicroBrush Kit
KMTC-440 (244PR044)  Tungsetn Carbide Scribe Kit
KMTC-451 (244PR046)  Diamond Scribe Kit
KMTJ-100 (244PR054)  Tungsten Needle Kit, 30 deg