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Back to Makita Manuals Page       Model: BTW450 Makita Parts Breakdown
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This is a Makita 18 Volt LXT 1/2 in Impact Wrench Model BTW450.

Features/Specifications:
  • Makita built motor delivers 325 ft. lbs. of torque in a compact size
  • Motor provides 1,600 RPM and 2,200 IPM for added muscle for tough jobs
  • More compact design at only 10 1/2 long and weighs only 7.5 lbs. for less operator fatigue
  • Large rocker switch for easier tool usage
  • Single L.E.D. light for increased job site visibility
  • Job site tested shock absorbent handle protects the battery housing for extra durability
  • Large tool hook ensures a secure clip when tool is not in use
  • Makita Lithium-Ion provides longer run time, 5x lower self-discharge (for use any time) & 16 firm holding contact terminals (for constant high power)
  • 30-Minute Rapid Optimum Charger communicates with the battery's built-in chip throughout the charging process to optimize battery life by actively controlling current, voltage and temperature
  • 30-Minute Rapid Optimum Charger has a built-in fan to cool the battery to produce more lifetime work
  • Soft grip handle provides increased work comfort on the job


  • Capacity  Square Drive 1/2 
    No Load RPM    1,600 
    Impacts/Min.(IPM)    2,200 
    Torque (ft. lbs.)    325 
    Watt Hours    54.0 
    Battery (Ah)    3.0 
    Length    10-1/2 
    Net Weight (lbs. w/battery)    7.5 


    Refer to the compatibility chart to determine if this tool will work with your battery and charger.

    This is a partial text extraction from the pdf, to download the pdf, click the Manual tab. If you want to search this text, hold control and F, and type the word you are looking for.

    Page: 1

    BTW450 Parts Breakdown Page 1 of 2 2 / 8 / 2008
    Page: 2

    BTW450 Parts Breakdown Fig # Part ID Part Name Quantity 1 862955 - 5 NAME PLATE , BTW450 1 2 265995 - 6 TAPPING SCREW 4X18 , 4323K 9 3 188433 - 0 HOUSING SET , BTW450 1 4 651572 - 4 SWITCH SL220SD - 19 1 5 631738 - 2 LIGHT CIRCUIT , BTW450 1 6 638503 - 0 SWITCH UNIT , BTW450 1 7 424042 - 4 CUSHION RUBBER , BTW450 1 8 188453 - 4 BATTERY HOUSING SET , BTW450 1 9 643812 - 4 TERMINAL , BTD140 1 10 421971 - 2 BUMPER , BTW450 1 11 266056 - 5 T . SCREW FLANGE PT5X45 , 9046 4 12 158076 - 2 HAMMER CASE CPL . , BTW450 1 13 267268 - 3 FLAT WASHER 19 , TW0200 1 14 322045 - 1 CLIP , 6905B 1 15 323675 - 1 PIN , 6905B 1 16 324405 - 3 ANVIL , TW0350 1 17 324697 - 4 HAMMER , BTW450 1 18 216008 - 6 STEEL BALL 4.0 , 6820V 29 19 267340 - 1 FLAT WASHER 32 , BTW450 2 20 233477 - 6 COMPRESSION SPRING 33 , BTW450 1 21 216007 - 8 STEEL BALL 6.4 , 6905B 2 22 227171 - 0 SPUR GEAR 23 , BTW450 3 23 310185 - 7 SPINDLE , BTW450 1 24 256033 - 5 PIN 6 , 6905B 3 25 253794 - 8 F . WASHER 18 , 6905B 1 26 213722 - 5 O RING 63 , BTW450 1 27 227172 - 8 INTERNAL GEAR 53 , BTW450 1 28 213407 - 3 O RING 26 , 4200H 1 29 210059 - 1 BALL BEARING 6000DDW , HR4040C 1 30 241850 - 6 FAN 60 , HP2030 1 31 519199 - 5 ARMATURE ASS'Y8V , BTW450 1 32 210025 - 8 BALL BEARING 627LLB , 4324 1 33 638107 - 8 YOKE UNIT , BJR240SH 1 34 265995 - 6 TAPPING SCREW 4X18 , 4323K 2 35 643818 - 2 BRUSH HOLDER , BTW450 1 36 643823 - 9 BRUSH HOLDER , BTW450 1 37 194435 - 6 CARBON BRUSH SET CB - 441 , BJR181 1 38 643941 - 3 HOLDER CAP , 5620DWA 2 39 188433 - 0 HOUSING SET , BTW450 1 40 424042 - 4 CUSHION RUBBER , BTW450 1 41 188453 - 4 BATTERY HOUSING SET , BTW450 1 42 251314 - 2 SCREW M4X12 , 2012 1 43 345736 - 7 HOOK , BTW450 1 44 263036 - 2 RUBBER PIN 5 , BTW251 1 45 268184 - 2 PIN 1.5 , BTW251 1 46 424026 - 2 CUSHION , BTW251 1 1,002 194205 - 3 BL1830 BATTERY , LXT400 , 3.0AH 2 1,003 450128 - 8 BATTERY COVER , BSS501 1 1,004 824777 - 1 N / A 1 1,005 804885 - 4 N / A 1 Page 2 of 2 2 / 8 / 2008
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