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AYSNAGLSDHSS-CO Long Drill 6550P GLSDSold0pcsNACHI 6550P GLSD is the TiN coated long-series straight shank drill on a cobalt substrate. TiN plus cobalt plus a long flute makes it the best-specified long straight shank drill here; the uncoated 550 LSD is the budget option. It is made from cobalt high speed steel (HSS-CO) with NACHI's G coating, a TiN-based general-purpose layer with excellent adhesion to HSS. Sizes cover diameter 1~13mm, flute length 40~150mm, overall length 100~300mm, 173 in total, made in Japan. How deep? Flute length 40~150mm and overall length 100~300mm across diameters 1~13mm. It suits carbon and alloy steel, stainless steel with workpiece hardness up to HRC40. Typical uses: production deep-hole drilling, deep holes in stainless, and through-holes in thick plate. The family also includes the standard 520P GSD (flute length 6~101mm) and the stub 6568P GSS (flute length 8~94mm); the uncoated long drill is 550 LSD, with overall length 75~600mm and rated to HRC30.

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HSS-CO Long Drill 6550P GLSD

Specifications (173 items)

Dia.

Flute length

Overall length

Depth ratio (×D)

Point angle

1~1.9

100

21.05~40

125

Expand this group (10 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD1.0*100	1	40	100
AYSNAGLSD1.1*100	1.1	40	100
AYSNAGLSD1.2*100	1.2	40	100
AYSNAGLSD1.3*100	1.3	40	100
AYSNAGLSD1.4*100	1.4	40	100
AYSNAGLSD1.5*100	1.5	40	100
AYSNAGLSD1.6*100	1.6	40	100
AYSNAGLSD1.7*100	1.7	40	100
AYSNAGLSD1.8*100	1.8	40	100
AYSNAGLSD1.9*100	1.9	40	100

2~2.9

40~75

100~150

16.67~30

125

Expand this group (20 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD2.0*100	2	40	100
AYSNAGLSD2.0*150	2	60	150
AYSNAGLSD2.1*100	2.1	40	100
AYSNAGLSD2.1*150	2.1	60	150
AYSNAGLSD2.2*100	2.2	40	100
AYSNAGLSD2.2*150	2.2	60	150
AYSNAGLSD2.3*100	2.3	40	100
AYSNAGLSD2.3*150	2.3	60	150
AYSNAGLSD2.4*100	2.4	40	100
AYSNAGLSD2.4*150	2.4	60	150
AYSNAGLSD2.5*100	2.5	50	100
AYSNAGLSD2.5*150	2.5	60	150
AYSNAGLSD2.6*100	2.6	50	100
AYSNAGLSD2.6*150	2.6	75	150
AYSNAGLSD2.7*100	2.7	50	100
AYSNAGLSD2.7*150	2.7	75	150
AYSNAGLSD2.8*100	2.8	50	100
AYSNAGLSD2.8*150	2.8	75	150
AYSNAGLSD2.9*100	2.9	50	100
AYSNAGLSD2.9*150	2.9	75	150

3~3.9

50~100

100~200

16.67~33.33

125

Expand this group (21 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD3.0*100	3	50	100
AYSNAGLSD3.0*150	3	75	150
AYSNAGLSD3.0*200	3	100	200
AYSNAGLSD3.1*150	3.1	75	150
AYSNAGLSD3.1*200	3.1	100	200
AYSNAGLSD3.2*150	3.2	75	150
AYSNAGLSD3.2*200	3.2	100	200
AYSNAGLSD3.3*150	3.3	75	150
AYSNAGLSD3.3*200	3.3	100	200
AYSNAGLSD3.4*150	3.4	75	150
AYSNAGLSD3.4*200	3.4	100	200
AYSNAGLSD3.5*150	3.5	75	150
AYSNAGLSD3.5*200	3.5	100	200
AYSNAGLSD3.6*150	3.6	75	150
AYSNAGLSD3.6*200	3.6	100	200
AYSNAGLSD3.7*150	3.7	75	150
AYSNAGLSD3.7*200	3.7	100	200
AYSNAGLSD3.8*150	3.8	75	150
AYSNAGLSD3.8*200	3.8	100	200
AYSNAGLSD3.9*150	3.9	75	150
AYSNAGLSD3.9*200	3.9	100	200

4~4.9

75~120

150~250

15.31~30

125

Expand this group (30 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD4.0*150	4	75	150
AYSNAGLSD4.0*200	4	100	200
AYSNAGLSD4.0*250	4	120	250
AYSNAGLSD4.1*150	4.1	75	150
AYSNAGLSD4.1*200	4.1	100	200
AYSNAGLSD4.1*250	4.1	120	250
AYSNAGLSD4.2*150	4.2	75	150
AYSNAGLSD4.2*200	4.2	100	200
AYSNAGLSD4.2*250	4.2	120	250
AYSNAGLSD4.3*150	4.3	75	150
AYSNAGLSD4.3*200	4.3	100	200
AYSNAGLSD4.3*250	4.3	120	250
AYSNAGLSD4.4*150	4.4	75	150
AYSNAGLSD4.4*200	4.4	100	200
AYSNAGLSD4.4*250	4.4	120	250
AYSNAGLSD4.5*150	4.5	75	150
AYSNAGLSD4.5*200	4.5	100	200
AYSNAGLSD4.5*250	4.5	120	250
AYSNAGLSD4.6*150	4.6	75	150
AYSNAGLSD4.6*200	4.6	100	200
AYSNAGLSD4.6*250	4.6	120	250
AYSNAGLSD4.7*150	4.7	75	150
AYSNAGLSD4.7*200	4.7	100	200
AYSNAGLSD4.7*250	4.7	120	250
AYSNAGLSD4.8*150	4.8	75	150
AYSNAGLSD4.8*200	4.8	100	200
AYSNAGLSD4.8*250	4.8	120	250
AYSNAGLSD4.9*150	4.9	75	150
AYSNAGLSD4.9*200	4.9	100	200
AYSNAGLSD4.9*250	4.9	120	250

5~5.9

75~150

150~300

12.71~30

125

Expand this group (32 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD5.0*150	5	75	150
AYSNAGLSD5.0*200	5	100	200
AYSNAGLSD5.0*250	5	120	250
AYSNAGLSD5.0*300	5	150	300
AYSNAGLSD5.1*150	5.1	75	150
AYSNAGLSD5.1*200	5.1	100	200
AYSNAGLSD5.1*250	5.1	120	250
AYSNAGLSD5.2*150	5.2	75	150
AYSNAGLSD5.2*200	5.2	100	200
AYSNAGLSD5.2*250	5.2	120	250
AYSNAGLSD5.3*150	5.3	75	150
AYSNAGLSD5.3*200	5.3	100	200
AYSNAGLSD5.3*250	5.3	120	250
AYSNAGLSD5.4*150	5.4	75	150
AYSNAGLSD5.4*200	5.4	100	200
AYSNAGLSD5.4*250	5.4	120	250
AYSNAGLSD5.5*150	5.5	75	150
AYSNAGLSD5.5*200	5.5	100	200
AYSNAGLSD5.5*250	5.5	120	250
AYSNAGLSD5.5*300	5.5	150	300
AYSNAGLSD5.6*150	5.6	75	150
AYSNAGLSD5.6*200	5.6	100	200
AYSNAGLSD5.6*250	5.6	120	250
AYSNAGLSD5.7*150	5.7	75	150
AYSNAGLSD5.7*200	5.7	100	200
AYSNAGLSD5.7*250	5.7	120	250
AYSNAGLSD5.8*150	5.8	75	150
AYSNAGLSD5.8*200	5.8	100	200
AYSNAGLSD5.8*250	5.8	120	250
AYSNAGLSD5.9*150	5.9	75	150
AYSNAGLSD5.9*200	5.9	100	200
AYSNAGLSD5.9*250	5.9	120	250

6~6.8

75~150

150~300

12.5~25

125

Expand this group (10 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD6.0*150	6	75	150
AYSNAGLSD6.0*200	6	100	200
AYSNAGLSD6.0*250	6	120	250
AYSNAGLSD6.0*300	6	150	300
AYSNAGLSD6.5*200	6.5	100	200
AYSNAGLSD6.5*250	6.5	120	250
AYSNAGLSD6.5*300	6.5	150	300
AYSNAGLSD6.8*200	6.8	100	200
AYSNAGLSD6.8*250	6.8	120	250
AYSNAGLSD6.8*300	6.8	150	300

7~7.8

100~150

200~300

12.82~21.43

125

Expand this group (12 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD7.0*200	7	100	200
AYSNAGLSD7.0*250	7	120	250
AYSNAGLSD7.0*300	7	150	300
AYSNAGLSD7.2*200	7.2	100	200
AYSNAGLSD7.2*250	7.2	120	250
AYSNAGLSD7.2*300	7.2	150	300
AYSNAGLSD7.5*200	7.5	100	200
AYSNAGLSD7.5*250	7.5	120	250
AYSNAGLSD7.5*300	7.5	150	300
AYSNAGLSD7.8*200	7.8	100	200
AYSNAGLSD7.8*250	7.8	120	250
AYSNAGLSD7.8*300	7.8	150	300

8~8.8

100~150

200~300

11.36~18.75

125

Expand this group (11 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD8.0*200	8	100	200
AYSNAGLSD8.0*250	8	120	250
AYSNAGLSD8.0*300	8	150	300
AYSNAGLSD8.2*200	8.2	100	200
AYSNAGLSD8.2*250	8.2	120	250
AYSNAGLSD8.2*300	8.2	150	300
AYSNAGLSD8.5*200	8.5	100	200
AYSNAGLSD8.5*250	8.5	120	250
AYSNAGLSD8.5*300	8.5	150	300
AYSNAGLSD8.8*200	8.8	100	200
AYSNAGLSD8.8*250	8.8	120	250

9~9.8

100~150

200~300

10.2~16.67

125

Expand this group (12 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD9.0*200	9	100	200
AYSNAGLSD9.0*250	9	120	250
AYSNAGLSD9.0*300	9	150	300
AYSNAGLSD9.2*200	9.2	100	200
AYSNAGLSD9.2*250	9.2	120	250
AYSNAGLSD9.2*300	9.2	150	300
AYSNAGLSD9.5*200	9.5	100	200
AYSNAGLSD9.5*250	9.5	120	250
AYSNAGLSD9.5*300	9.5	150	300
AYSNAGLSD9.8*200	9.8	100	200
AYSNAGLSD9.8*250	9.8	120	250
AYSNAGLSD9.8*300	9.8	150	300

10~10.5

100~150

200~300

10~15

125

Expand this group (5 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD10.0*200	10	100	200
AYSNAGLSD10.0*250	10	120	250
AYSNAGLSD10.0*300	10	150	300
AYSNAGLSD10.5*250	10.5	120	250
AYSNAGLSD10.5*300	10.5	150	300

11~11.5

120~150

250~300

10.43~13.64

125

Expand this group (4 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD11.0*250	11	120	250
AYSNAGLSD11.0*300	11	150	300
AYSNAGLSD11.5*250	11.5	120	250
AYSNAGLSD11.5*300	11.5	150	300

12~13

120~150

250~300

9.23~12.5

125

Expand this group (6 specs)

Part No.	Dia.	Flute length	Overall length
AYSNAGLSD12.0*250	12	120	250
AYSNAGLSD12.0*300	12	150	300
AYSNAGLSD12.5*250	12.5	120	250
AYSNAGLSD12.5*300	12.5	150	300
AYSNAGLSD13.0*250	13	120	250
AYSNAGLSD13.0*300	13	150	300

Specification Range

Diameter	1~13mm
Flute length	40~150mm
Overall length	100~300mm
Depth ratio	9.23~40

Product Description

NACHI 6550P GLSD is the TiN coated long-series straight shank drill on a cobalt substrate. TiN plus cobalt plus a long flute makes it the best-specified long straight shank drill here; the uncoated 550 LSD is the budget option. It is made from cobalt high speed steel (HSS-CO) with NACHI's G coating, a TiN-based general-purpose layer with excellent adhesion to HSS. Sizes cover diameter 1~13mm, flute length 40~150mm, overall length 100~300mm, 173 in total, made in Japan. How deep? Flute length 40~150mm and overall length 100~300mm across diameters 1~13mm. It suits carbon and alloy steel, stainless steel with workpiece hardness up to HRC40. Typical uses: production deep-hole drilling, deep holes in stainless, and through-holes in thick plate. The family also includes the standard 520P GSD (flute length 6~101mm) and the stub 6568P GSS (flute length 8~94mm); the uncoated long drill is 550 LSD, with overall length 75~600mm and rated to HRC30.

Workpiece Materials & Hardness

Steel (P)
Stainless steel (M)

Max. workpiece hardness HRC40

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HSS-CO Long Drill 6550P GLSD

Specifications (173 items)

Specification Range

Product Description

Workpiece Materials & Hardness

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Related Resources