Ya, using the small 1-2mm tips for soldering the wires on a servo for when shortening or making servo wire longer.

5.2mm for your batter building, soldering wire to your packs, etc..

Since I cant post ebay auctions, look for the seller, "niosales"

Replacement Tips
Part No: 900M-T-0.2RB
TIP,0.2RB,900M/907/913

Part No: 900M-T-0.5C
TIP,0.5C,900M/907/913

Part No: 900M-T-0.8C
TIP,0.8C,900M/907/913

Part No: 900M-T-0.8D
TIP,0.8D,900M/907/913

Part No: 900M-T-1.2D
TIP,1.2D,900M/907/913

Part No: 900M-T-1.2LD
TIP,1.2LD,900M/907/913

Part No: 900M-T-1.5CF
TIP,1.5CF,900M/907/913

Part No: 900M-T-1.6D
TIP,1.6D,900M/907/913

Part No: 900M-T-1.8H
TIP,1.8H,900M/907/913

Part No: 900M-T-1C
TIP,1C,900M/907/913

Part No: 900M-T-1CF
TIP,1CF,900M/907/913,SPECIAL

Part No: 900M-T-2.4D
TIP,2.4D,900M/907/913

Part No: 900M-T-2C
TIP,2C,900M/907/913

Part No: 900M-T-2CF
TIP,2CF,900M/907/913,SPECIAL

Part No: 900M-T-2LD
TIP,2LD,900M/907/913

Part No: 900M-T-3.2D
TIP,3.2D,900M/907/913

Part No: 900M-T-3.2LD
TIP,3.2LD,900M/907/913

Part No: 900M-T-3C
TIP,3C,900M/907/913

Part No: 900M-T-3CF
TIP,3CF,900M/907/913,SPECIAL

Part No: 900M-T-3CM
TIP,3CM,900M/907/913

Part No: 900M-T-4C
TIP,4C,900M/907/913

Part No: 900M-T-4CF
TIP,4CF,900M/907/913,SPECIAL

Part No: 900M-T-B
TIP,B,900M/907/913

Part No: 900M-T-H
TIP,H,900M/907/913

Part No: 900M-T-I
TIP,I,900M/907/913

Part No: 900M-T-K
TIP,K,900M/907/913

Part No: 900M-T-LB
TIP,LB,900M/907/913

Part No: 900M-T-R
TIP,R,900M/907/913

Part No: 900M-T-RT
TIP,RT,900M/907/913

Part No: 900M-T-S3
TIP,13/64in. D,900M/907/913

Part No: 900M-T-S4
TIP,SMD,MICRO,900M/907/913

Part No: 900M-T-S6
TIP,C1.27,MICRO,900M/907/913

Part No: 900M-T-S7
TIP,C1.18,MICRO,900M/907/913

Part No: 900M-T-S8
TIP,LC,900M/907/913

Part No: 900M-T-S9
TIP,3/64in. D,900M/907/913,900M-T-S1

Part No: 900M-T-SB
TIP,SB,900M/907/913

Part No: 900M-T-SI
TIP,SI,900M